PI7C9X2G404SL
PCI EXPRESS GEN 2 PACKET SWITCH
DATASHEET
REVISION 1.1
November 2012
3545 North 1ST Street, San Jose, CA 95134
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PI7C9X2G404SL
4Port-4Lane PCI Express Gen 2 Switch
SlimPacketTM Family
Datasheet
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November 2012 – Revision 1.1
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Page 2 of 88
PI7C9X2G404SL
4Port-4Lane PCI Express Gen 2 Switch
SlimPacketTM Family
Datasheet
REVISION HISTORY
Date
6/9/10
10/19/10
Revision Number
0.1
0.2
Description
Preliminary Datasheet
Added Section 6 EEPROM Interface And System Management Bus
Added Section 7 Register Description
Added Industrial Temperature Support (Section 1 Features, Section 11.1
Absolute Maximum Ratings, Section 13 Ordering Information)
Updated Section 1 Features (integrated reference clock)
Updated Section 3.1 PCI Express Interface Signals (Added REFCLKI_P,
REFCLKI_N, REFCLKO_P[3:0], REFCLKO_N[3:0], and IREF)
Updated Section 3.2 Port Configuration Signals (RXPOLINV_DIS)
Updated Section 3.3 Miscellaneous Signals (TEST4 and TEST5)
Updated Section 1 Features (OBFF and LTR support)
Updated Section 3 Pin Description (RXPOLINV_DIS, PRSNT[3:1], TEST4,
TEST5, and CVDDR)
Updated Section 6 EEPROM Interface And System Management Bus
Updated Section 7 Register Description
Updated Table 8-1 Clock Requirement
Updated Table 3.5 Power Pins
Updated Table 4.1 Pin List of 129-Pin LQFP
7/12/11
11/23/11
6/27/12
7/25/12
0.3
0.4
0.5
1.0
11/7/12
1.1
November 2012 – Revision 1.1
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Page 3 of 88
PI7C9X2G404SL
4Port-4Lane PCI Express Gen 2 Switch
SlimPacketTM Family
Datasheet
TABLE OF CONTENTS
1 FEATURES ...................................................................................................................................................................... 9
2 GENERAL DESCRIPTION ......................................................................................................................................... 10
3 PIN DESCRIPTION ...................................................................................................................................................... 12
PCI EXPRESS INTERFACE SIGNALS .................................................................................................... 12
3.1
3.2
PORT CONFIGURATION SIGNALS ....................................................................................................... 13
3.3 MISCELLANEOUS SIGNALS .................................................................................................................. 13
JTAG BOUNDARY SCAN SIGNALS ...................................................................................................... 14
3.4
3.5
POWER PINS ............................................................................................................................................. 14
4 PIN ASSIGNMENTS .................................................................................................................................................... 15
4.1
PIN LIST OF 128-PIN LQFP ....................................................................................................................... 15
5 FUNCTIONAL DESCRIPTION .................................................................................................................................. 16
5.1
5.2
5.3
5.4
5.5
5.6
5.1.1
5.1.2
5.1.3
5.1.4
5.1.5
5.1.6
5.1.7
5.1.8
PHYSICAL LAYER CIRCUIT .................................................................................................................. 16
RECEIVER DETECTION ................................................................................................................... 16
RECEIVER SIGNAL DETECTION ..................................................................................................... 17
RECEIVER EQUALIZATION ............................................................................................................. 17
TRANSMITTER SWING ...................................................................................................................... 17
DRIVE AMPLITUDE AND DE-EMPHASIS SETTINGS .................................................................... 17
DRIVE AMPLITUDE .......................................................................................................................... 18
DRIVE DE-EMPHASIS ...................................................................................................................... 19
TRANSMITTER ELECTRICAL IDLE LATENCY ............................................................................... 19
DATA LINK LAYER (DLL) ...................................................................................................................... 19
TRANSACTION LAYER RECEIVE BLOCK (TLP DECAPSULATION) .............................................. 20
ROUTING .................................................................................................................................................. 20
TC/VC MAPPING ...................................................................................................................................... 20
QUEUE ....................................................................................................................................................... 21
PH ....................................................................................................................................................... 21
PD ....................................................................................................................................................... 21
NPHD ................................................................................................................................................. 21
CPLH .................................................................................................................................................. 21
CPLD .................................................................................................................................................. 21
TRANSACTION ORDERING ................................................................................................................... 21
5.7
PORT ARBITRATION .............................................................................................................................. 22
5.8
VC ARBITRATION ................................................................................................................................... 23
5.9
5.10 FLOW CONTROL ..................................................................................................................................... 23
5.11 TRANSATION LAYER TRANSMIT BLOCK (TLP ENCAPSULATION) ............................................. 23
5.6.1
5.6.2
5.6.3
5.6.4
5.6.5
6 EEPROM INTERFACE AND SYSTEM MANAGEMENT BUS ............................................................................. 24
6.1
6.1.1
6.1.2
6.1.3
6.1.4
EEPROM INTERFACE ............................................................................................................................. 24
AUTO MODE EERPOM ACCESS ..................................................................................................... 24
EEPROM MODE AT RESET .............................................................................................................. 24
EEPROM SPACE ADDRESS MAP .................................................................................................... 24
MAPPING EEPROM CONTENTS TO CONFIGURATION REGISTERS .......................................... 27
SMBUS INTERFACE ................................................................................................................................. 35
6.2
7 REGISTER DESCRIPTION ........................................................................................................................................ 36
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7.1
7.2
PI7C9X2G404SL
4Port-4Lane PCI Express Gen 2 Switch
SlimPacketTM Family
Datasheet
REGISTER TYPES .................................................................................................................................... 36
TRANSPARENT MODE CONFIGURATION REGISTERS .................................................................... 36
VENDOR ID REGISTER – OFFSET 00h ........................................................................................... 38
7.2.1
DEVICE ID REGISTER – OFFSET 00h ............................................................................................. 38
7.2.2
COMMAND REGISTER – OFFSET 04h ............................................................................................ 38
7.2.3
PRIMARY STATUS REGISTER – OFFSET 04h ................................................................................. 39
7.2.4
REVISION ID REGISTER – OFFSET 08h ......................................................................................... 40
7.2.5
CLASS CODE REGISTER – OFFSET 08h ......................................................................................... 40
7.2.6
CACHE LINE REGISTER – OFFSET 0Ch ......................................................................................... 40
7.2.7
PRIMARY LATENCY TIMER REGISTER – OFFSET 0Ch ................................................................ 40
7.2.8
HEADER TYPE REGISTER – OFFSET 0Ch ...................................................................................... 40
7.2.9
PRIMARY BUS NUMBER REGISTER – OFFSET 18h ...................................................................... 40
7.2.10
SECONDARY BUS NUMBER REGISTER – OFFSET 18h ................................................................ 41
7.2.11
SUBORDINATE BUS NUMBER REGISTER – OFFSET 18h ............................................................ 41
7.2.12
SECONDARY LATENCY TIMER REGISTER – OFFSET 18h ........................................................... 41
7.2.13
I/O BASE ADDRESS REGISTER – OFFSET 1Ch .............................................................................. 41
7.2.14
I/O LIMIT ADDRESS REGISTER – OFFSET 1Ch ............................................................................. 41
7.2.15
7.2.16
SECONDARY STATUS REGISTER – OFFSET 1Ch .......................................................................... 42
7.2.17 MEMORY BASE ADDRESS REGISTER – OFFSET 20h ................................................................... 42
7.2.18 MEMORY LIMIT ADDRESS REGISTER – OFFSET 20h .................................................................. 42
PREFETCHABLE MEMORY BASE ADDRESS REGISTER – OFFSET 24h ..................................... 43
7.2.19
PREFETCHABLE MEMORY LIMIT ADDRESS REGISTER – OFFSET 24h .................................... 43
7.2.20
7.2.21
PREFETCHABLE MEMORY BASE ADDRESS UPPER 32-BITS REGISTER – OFFSET 28h ......... 43
PREFETCHABLE MEMORY LIMIT ADDRESS UPPER 32-BITS REGISTER – OFFSET 2Ch ....... 43
7.2.22
I/O BASE ADDRESS UPPER 16-BITS REGISTER – OFFSET 30h ................................................... 43
7.2.23
7.2.24
I/O LIMIT ADDRESS UPPER 16-BITS REGISTER – OFFSET 30h .................................................. 44
7.2.25 CAPABILITY POINTER REGISTER – OFFSET 34h ......................................................................... 44
7.2.26
INTERRUPT LINE REGISTER – OFFSET 3Ch ................................................................................. 44
INTERRUPT PIN REGISTER – OFFSET 3Ch ................................................................................... 44
7.2.27
BRIDGE CONTROL REGISTER – OFFSET 3Ch .............................................................................. 44
7.2.28
7.2.29
POWER MANAGEMENT CAPABILITY ID REGISTER – OFFSET 40h ........................................... 45
7.2.30 NEXT ITEM POINTER REGISTER – OFFSET 40h ........................................................................... 45
POWER MANAGEMENT CAPABILITIES REGISTER – OFFSET 40h ............................................. 45
7.2.31
POWER MANAGEMENT DATA REGISTER – OFFSET 44h ............................................................ 46
7.2.32
7.2.33
PPB SUPPORT EXTENSIONS – OFFSET 44h .................................................................................. 46
7.2.34 DATA REGISTER – OFFSET 44h ...................................................................................................... 46
7.2.35 MSI CAPABILITY ID REGISTER – OFFSET 4Ch (Downstream Port Only) .................................... 47
7.2.36 NEXT ITEM POINTER REGISTER – OFFSET 4Ch (Downstream Port Only) ................................. 47
7.2.37 MESSAGE CONTROL REGISTER – OFFSET 4Ch (Downstream Port Only) .................................. 47
7.2.38 MESSAGE ADDRESS REGISTER – OFFSET 50h (Downstream Port Only) .................................... 47
7.2.39 MESSAGE UPPER ADDRESS REGISTER – OFFSET 54h (Downstream Port Only) ...................... 47
7.2.40 MESSAGE DATA REGISTER – OFFSET 58h (Downstream Port Only) ........................................... 48
7.2.41
VPD CAPABILITY ID REGISTER – OFFSET 5Ch (Upstream Port Only) ........................................ 48
7.2.42 NEXT ITEM POINTER REGISTER – OFFSET 5Ch (Upstream Port Only) ...................................... 48
VPD REGISTER – OFFSET 5Ch (Upstream Port Only) .................................................................... 48
7.2.43
7.2.44
VPD DATA REGISTER – OFFSET 60h (Upstream Port Only) ......................................................... 48
7.2.45
VENDOR SPECIFIC CAPABILITY ID REGISTER – OFFSET 64h .................................................. 48
7.2.46 NEXT ITEM POINTER REGISTER – OFFSET 64h ........................................................................... 49
LENGTH REGISTER – OFFSET 64h ................................................................................................. 49
7.2.47
7.2.48
XPIP CSR0 – OFFSET 68h (Test Purpose Only) ............................................................................... 49
XPIP CSR1 – OFFSET 6Ch (Test Purpose Only) ............................................................................... 49
7.2.49
REPLAY TIME-OUT COUNTER – OFFSET 70h .............................................................................. 49
7.2.50
7.2.51
ACKNOWLEDGE LATENCY TIMER – OFFSET 70h ....................................................................... 50
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PI7C9X2G404SL
4Port-4Lane PCI Express Gen 2 Switch
SlimPacketTM Family
Datasheet
SWITCH OPERATION MODE – OFFSET 74h (Upstream Port) ...................................................... 50
7.2.52
SWITCH OPERATION MODE – OFFSET 74h (Downstream Port) .................................................. 51
7.2.53
XPIP_CSR2 – OFFSET 78h ............................................................................................................... 51
7.2.54
PHY PARAMETER 1 – OFFSET 7Ah ................................................................................................. 52
7.2.55
PHY PARAMETER 2 – OFFSET 7Ch ................................................................................................ 52
7.2.56
XPIP_CSR3 – OFFSET 80h ............................................................................................................... 53
7.2.57
XPIP_CSR4 – OFFSET 84h ............................................................................................................... 53
7.2.58
XPIP_CSR5 – OFFSET 88h ............................................................................................................... 53
7.2.59
TL_CSR – OFFSET 8Ch ..................................................................................................................... 53
7.2.60
PHY parameter 3 – OFFSET 90h ....................................................................................................... 54
7.2.61
7.2.62
PHY parameter 4 - OFFSET 94h ........................................................................................................ 54
7.2.63 Operation Mode –OFFSET 98h .......................................................................................................... 54
7.2.64
SSID/SSVID CAPABILITY ID REGISTER – OFFSET B0h ................................................................ 55
7.2.65 NEXT ITEM POINTER REGISTER – OFFSET B0h .......................................................................... 55
SUBSYSTEM VENDOR ID REGISTER – OFFSET B4h .................................................................... 55
7.2.66
7.2.67
SUBSYSTEM ID REGISTER – OFFSET B4h ..................................................................................... 55
7.2.68 GPIO CONTROL REGISTER – OFFSET B8h (Upstream Port Only) ............................................... 55
EEPROM CONTROL REGISTER – OFFSET BCh (Upstream Port Only) ........................................ 57
7.2.69
7.2.70
EEPROM ADDRESS REGISTER – OFFSET BCh (Upstream Port Only) ......................................... 57
EEPROM DATA REGISTER – OFFSET BCh (Upstream Port Only) ................................................ 57
7.2.71
7.2.72
PCI EXPRESS CAPABILITY ID REGISTER – OFFSET C0h ............................................................ 58
7.2.73 NEXT ITEM POINTER REGISTER – OFFSET C0h .......................................................................... 58
7.2.74
PCI EXPRESS CAPABILITIES REGISTER – OFFSET C0h .............................................................. 58
7.2.75 DEVICE CAPABILITIES REGISTER – OFFSET C4h ....................................................................... 58
7.2.76 DEVICE CONTROL REGISTER – OFFSET C8h .............................................................................. 59
7.2.77 DEVICE STATUS REGISTER – OFFSET C8h ................................................................................... 60
LINK CAPABILITIES REGISTER – OFFSET CCh ............................................................................ 60
7.2.78
7.2.79
LINK CONTROL REGISTER – OFFSET D0h ................................................................................... 61
LINK STATUS REGISTER – OFFSET D0h ........................................................................................ 62
7.2.80
SLOT CAPABILITIES REGISTER (Downstream Port Only) – OFFSET D4h ................................... 63
7.2.81
7.2.82
SLOT CONTROL REGISTER (Downstream Port Only) – OFFSET D8h .......................................... 63
7.2.83
SLOT STATUS REGISTER (Downstream Port Only) – OFFSET D8h............................................... 64
7.2.84 DEVICE CAPABILITIES REGISTER 2 – OFFSET E4h .................................................................... 65
7.2.85 DEVICE CONTROL REGISTER 2 – OFFSET E8h ............................................................................ 65
7.2.86 DEVIDE STATUS REGISTER 2 – OFFSET EAh ............................................................................... 65
LINK CAPABILITIES REGISTER 2 – OFFSET ECh ......................................................................... 66
7.2.87
7.2.88
LINK CONTROL REGISTER 2 – OFFSET F0h ................................................................................. 66
LINK STATUS REGISTER 2 – OFFSET F2h ..................................................................................... 66
7.2.89
SLOT CAPABILITIES REGISTER 2 – OFFSET F4h ......................................................................... 66
7.2.90
SLOT CONTORL REGISTER 2 – OFFSET F8h ................................................................................ 66
7.2.91
7.2.92
SLOT STATUS REGISTER 2 – OFFSET FAh .................................................................................... 66
7.2.93
PCI EXPRESS ADVANCED ERROR REPORTING CAPABILITY ID REGISTER – OFFSET 100h . 66
7.2.94 CAPABILITY VERSION – OFFSET 100h .......................................................................................... 67
7.2.95 NEXT ITEM POINTER REGISTER – OFFSET 100h ......................................................................... 67
7.2.96 UNCORRECTABLE ERROR STATUS REGISTER – OFFSET 104h ................................................. 67
7.2.97 UNCORRECTABLE ERROR MASK REGISTER – OFFSET 108h .................................................... 68
7.2.98 UNCORRECTABLE ERROR SEVERITY REGISTER – OFFSET 10Ch ............................................. 68
7.2.99 CORRECTABLE ERROR STATUS REGISTER – OFFSET 110 h ...................................................... 69
CORRECTABLE ERROR MASK REGISTER – OFFSET 114 h ..................................................... 70
7.2.100
7.2.101
ADVANCE ERROR CAPABILITIES AND CONTROL REGISTER – OFFSET 118h ..................... 70
HEADER LOG REGISTER – OFFSET From 11Ch to 128h .......................................................... 71
7.2.102
PCI EXPRESS VIRTUAL CHANNEL CAPABILITY ID REGISTER – OFFSET 140h ................... 71
7.2.103
7.2.104
CAPABILITY VERSION – OFFSET 140h ...................................................................................... 71
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PI7C9X2G404SL
4Port-4Lane PCI Express Gen 2 Switch
SlimPacketTM Family
Datasheet
NEXT ITEM POINTER REGISTER – OFFSET 140h ..................................................................... 71
7.2.105
PORT VC CAPABILITY REGISTER 1 – OFFSET 144h ................................................................ 71
7.2.106
PORT VC CAPABILITY REGISTER 2 – OFFSET 148h ................................................................ 72
7.2.107
PORT VC CONTROL REGISTER – OFFSET 14Ch ....................................................................... 72
7.2.108
PORT VC STATUS REGISTER – OFFSET 14Ch ........................................................................... 72
7.2.109
VC RESOURCE CAPABILITY REGISTER (0) – OFFSET 150h .................................................... 73
7.2.110
VC RESOURCE CONTROL REGISTER (0) – OFFSET 154h ....................................................... 73
7.2.111
VC RESOURCE STATUS REGISTER (0) – OFFSET 158h ............................................................ 74
7.2.112
VC RESOURCE CAPABILITY REGISTER (1) – OFFSET 15Ch ................................................... 74
7.2.113
VC RESOURCE CONTROL REGISTER (1) – OFFSET 160h ....................................................... 74
7.2.114
VC RESOURCE STATUS REGISTER (1) – OFFSET 164h ............................................................ 75
7.2.115
VC ARBITRATION TABLE REGISTER – OFFSET 170h ............................................................... 75
7.2.116
PORT ARBITRATION TABLE REGISTER (0) and (1) – OFFSET 180h and 1C0h ....................... 76
7.2.117
PCI EXPRESS POWER BUDGETING CAPABILITY ID REGISTER – OFFSET 20Ch ................ 76
7.2.118
CAPABILITY VERSION – OFFSET 20Ch ...................................................................................... 76
7.2.119
NEXT ITEM POINTER REGISTER – OFFSET 20Ch .................................................................... 76
7.2.120
DATA SELECT REGISTER – OFFSET 210h ................................................................................. 77
7.2.121
POWER BUDGETING DATA REGISTER – OFFSET 214h .......................................................... 77
7.2.122
POWER BUDGET CAPABILITY REGISTER – OFFSET 218h ..................................................... 77
7.2.123
ACS EXTENDED CAPABILITY HEADER – OFFSET 220h (Downstream Port only) .................. 77
7.2.124
ACS CAPABILITY REGISTER – OFFSET 224h (Downstream Port only) ..................................... 78
7.2.125
EGRESS CONTROL VECTOR – OFFSET 228h (Downstream Port only) .................................... 78
7.2.126
LTR EXTENDED CAPABILITY HEADER – OFFSET 230h (Upstream Port only) ....................... 78
7.2.127
7.2.128 MAX SNOOP LATENCY REGISTER – OFFSET 234h (Upstream Port only) .................................. 79
7.2.129 MAX NO-SNOOP LATENCY REGISTER – OFFSET 236h (Upstream Port only) ........................... 79
8 CLOCK SCHEME ........................................................................................................................................................ 80
9
IEEE 1149.1 COMPATIBLE JTAG CONTROLLER ............................................................................................... 81
9.1
9.2
9.3
9.4
9.5
INSTRUCTION REGISTER ...................................................................................................................... 81
BYPASS REGISTER ................................................................................................................................. 81
DEVICE ID REGISTER ............................................................................................................................. 81
BOUNDARY SCAN REGISTER ............................................................................................................... 81
JTAG BOUNDARY SCAN REGISTER ORDER ...................................................................................... 82
10 POWER MANAGEMENT ........................................................................................................................................... 83
11 ELECTRICAL AND TIMING SPECIFICATIONS .................................................................................................. 84
11.1 ABSOLUTE MAXIMUM RATINGS ........................................................................................................ 84
11.2 DC SPECIFICATIONS .............................................................................................................................. 84
11.3 AC SPECIFICATIONS .............................................................................................................................. 85
12 PACKAGE INFORMATION ....................................................................................................................................... 87
13 ORDERING INFORMATION ..................................................................................................................................... 88
November 2012 – Revision 1.1
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Page 7 of 88
PI7C9X2G404SL
4Port-4Lane PCI Express Gen 2 Switch
SlimPacketTM Family
Datasheet
TABLE OF FIGURES
FIGURE 5-1 DRIVER OUTPUT WAVEFORM ................................................................................................................... 18
FIGURE 6-1 SMBUS ARCHITECTURE IMPLEMENTATION ON PI7C9X2G404SL ........................................................... 35
FIGURE 12-1 PACKAGE OUTLINE DRAWING ................................................................................................................. 87
LIST OF TABLES
TABLE 5-1 RECEIVER DETECTION THRESHOLD SETTINGS ........................................................................................... 16
TABLE 5-2 RECEIVER SIGNAL DETECT THRESHOLD .................................................................................................... 17
TABLE 5-3 RECEIVER EQUALIZATION SETTINGS ......................................................................................................... 17
TABLE 5-4 TRANSMITTER SWING SETTINGS ................................................................................................................ 17
TABLE 5-5 DRIVE AMPLITUDE BASE LEVEL REGISTERS.............................................................................................. 18
TABLE 5-6 DRIVE AMPLITUDE BASE LEVEL SETTINGS ................................................................................................ 18
TABLE 5-7 DRIVE DE-EMPHASIS BASE LEVEL REGISTER ............................................................................................ 19
TABLE 5-8 DRIVE DE-EMPHASIS BASE LEVEL SETTINGS ............................................................................................ 19
TABLE 5-9 SUMMARY OF PCI EXPRESS ORDERING RULES .......................................................................................... 22
TABLE 6-1 SMBUS ADDRESS PIN CONFIGURATION .................................................................................................... 35
TABLE 7-1 REGISTER ARRAY LAYOUT FOR VC ARBITRATION .................................................................................... 75
TABLE 7-2 TABLE ENTRY SIZE IN 4 BITS ..................................................................................................................... 76
TABLE 8-1 INPUT CLOCK REQUIREMENTS ................................................................................................................... 80
TABLE 9-1 INSTRUCTION REGISTER CODES .................................................................................................................. 81
TABLE 9-2 JTAG DEVICE ID REGISTER ....................................................................................................................... 81
TABLE 9-3 JTAG BOUNDARY SCAR REGISTER DEFINITION .......................................................................................... 82
TABLE 11-1 ABSOLUTE MAXIMUM RATINGS ................................................................................................................ 84
TABLE 11-2 DC ELECTRICAL CHARACTERISTICS ......................................................................................................... 84
TABLE 11-3 PCI EXPRESS INTERFACE - DIFFERENTIAL TRANSMITTER (TX) OUTPUT (5.0 GBPS) CHARACTERISTICS . 85
TABLE 11-4 PCI EXPRESS INTERFACE - DIFFERENTIAL TRANSMITTER (TX) OUTPUT (2.5 GBPS) CHARACTERISTICS . 85
TABLE 11-5 PCI EXPRESS INTERFACE - DIFFERENTIAL RECEIVER (RX) INPUT (5.0 GBPS) CHARACTERISTICS ........... 86
TABLE 11-6 PCI EXPRESS INTERFACE - DIFFERENTIAL RECEIVER (RX) INPUT (2.5 GBPS) CHARACTERISTICS ........... 86
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