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/ Overview
Features
Functional Block Diagram
Table of Contents
List of Figures
List of Tables
Main Features
Switch core
Overview
Features
Pins
Ball Map (Top View)
Pin Descriptions
Pin Sharing Schemes
GPIO pin share scheme
UART pin share scheme
RGMII pin share schemes
WDT_RST_MODE pin share scheme
PERST_N pin share scheme
MDC/MDIO pin share scheme
NAND/SDXC/SPI pin share scheme
Pin share function description
xMII PHY/MAC Pin Mapping
Strapping Options
Electrical Characteristics
Absolute Maximum Ratings
Recommended Operating Range
DC Characteristics
Thermal Characteristics
Current Consumption
Storage Conditions
External Xtal Specfication
AC Electrical Characteristics
DDR SDRAM Interface
RGMII Interface
MII Interface (25 Mhz)
RvMII Interface (PHY Mode MII Timing) (25 Mhz)
SPI Interface
I2S Interface
PCM Interface
I2C Interface
SDIO Interface
NAND Flash Interface (Samsung Compatibel Device)
Power On Sequence
Package Information
Dimensions - TFBGA (11.7 mm x 13.6 mm)
Diagram Key
Reflow Profile Guideline
Top Marking
Ordering Information
Abbreviations
Revision History
MT7621A Network Processor FOR stonexu@ zioncom.net USE ONLY MEDIATEK CONFIDENTIAL MT7621A DATASHEET Page 1 of 45 MT7621A_Data_Sheet_v0.4 loginid=stonexu@zioncom.net,time=2014-05-29 11:44:05,ip=183.16.164.220,doctitle=MT7621A_Datasheet_v0_4.docx,company=Zioncom Technology Co.LTD(吉翁)_RLT
 Gigabit Switch bits) Overview MT7621A Network Processor  HW storage accelerator  HW NAT - 2Gbps wired speed - L2 bridge - IPv4 routing, NAT, NAPT - IPv6 routing, DS-Lite, 6RD, 6to4  HW QoS - 32 KB I-Cache and 32 KB D-Cache per core - 256 KB L2 Cache (shared by Dual-Core) - SMP capable - Single processor operation configurable - 5 ports with full-line rate - 5-port 10/100/1000Mbps MDI transceivers  One RGMII/MII interface  16-bit DDR2/3 up to 256/512 Mbytes  SPI(2 chip select), NAND Flash(SLC), SDXC, eMMC(4 Applications:  Internet service router  Wireless router  Home security gateway  NAS devices  iNICs  Switch control processor The MT7621A integrates a dual-core MIPS1004Kc (880MHz), HNAT/ HQoS/ Samba/ VPN accelerators, 5-port GbE switch, RGMII, USB3.0, USB2.0, 3xPCIe, SD-XC. The powerful CPU with rich portfolio is suitable for 802.11ac, LTE cat4/5, edge, hotspot, VPN, AC (Access Control). It can also connect to touch- panel, ZigBee/Z-Wave for Internet Service Router and Home Security Gateway. For the next generation router, MT7621A provides several dedicated hardware engines to accelerate the NAT, QoS, Samba and VPN traffic. These accelerators relief the CPU for other upper layer applications. Features  Embedded MIPS1004Kc (880 MHz, Dual-Core) FOR stonexu@ zioncom.net USE ONLY MEDIATEK CONFIDENTIAL  USB3 x 1+ USB2 x 1 or USB2 x 2 (all host)  PCIe host x 3  I2C, UART Lite x 3, JTAG, MDC, MDIO, GPIO  VoIP support (I2S, PCM)  Audio interface (SPDIF-Tx, I2S, PCM)  Deliver the superb Samba performance via USB - 16 hardware queues to guarantee the min/max bandwidth of each flow. - Seamlessly co-work with HW NAT engine. - 2Gbps wired speed.  Intelligent Clock Scaling (exclusive)  DDR2/3: ODT off, Self-refresh mode  Firmware: Linux 2.6 SDK, OpenWRT  RGMII iNIC Driver: Linux 2.4/2.6  HW Crypto Engine - Deliver 400~500 Mbps IPSec throughput  Green 2.0/USB 3.0/SD-XC Functional Block Diagram MT7621A_Data_Sheet_v0.4 loginid=stonexu@zioncom.net,time=2014-05-29 11:44:05,ip=183.16.164.220,doctitle=MT7621A_Datasheet_v0_4.docx,company=Zioncom Technology Co.LTD(吉翁)_RLT Page 2 of 45 Clock/Timer/Reset/PLLDRAM ControllerSPI (2) PCIeUSB 3.0 HostUART Lite (3) External Interface25/40MHz CrystalDDR2/3NAND/SDXC/eMMCFlashSPI Flash/CodecUART InterfaceUSB 3.0 Interface USB 2.0 InterfaceSATAAudio InterfaceGPIO/LEDNAND/SD-XC/eMMCI2CI2S, PCM, S/PDIFHNAT+BW CTRLCrypto11n WiFiPCIeStorage AcceleratorUSB 2.0 HostMIPS 1004KEc(880 MHz)32K I-Cache32K D-CacheMIPS 1004KEc(880 MHz)32K I-Cache32K D-CacheL2-Cache 256KBCache Coherency PortPCIeNFCSATAIII (2)11ac WiFi01234Gigabit SwitchTransformerRGMII
MT7621A Network Processor Table of Contents LIST OF FIGURES ............................................................................................................................................... 5 LIST OF TABLES ................................................................................................................................................ 6 1. MAIN FEATURES .......................................................................................................................................... 7 2. PINS ............................................................................................................................................................. 9 OVERVIEW ....................................................................................................................................................... 2 FEATURES ........................................................................................................................................................ 2 FUNCTIONAL BLOCK DIAGRAM ........................................................................................................................ 2 TABLE OF CONTENTS ........................................................................................................................................ 3 1.1 SWITCH CORE .................................................................................................................................................... 7 1.1.1 Overview ................................................................................................................................................ 7 1.1.2 Features ................................................................................................................................................. 8 FOR stonexu@ zioncom.net USE ONLY MEDIATEK CONFIDENTIAL 3.1 ABSOLUTE MAXIMUM RATINGS .......................................................................................................................... 24 3.2 RECOMMENDED OPERATING RANGE ................................................................................................................... 24 3.3 DC CHARACTERISTICS ....................................................................................................................................... 24 3.4 THERMAL CHARACTERISTICS ............................................................................................................................... 25 3.5 CURRENT CONSUMPTION .................................................................................................................................. 25 3.6 STORAGE CONDITIONS ...................................................................................................................................... 25 3.7 EXTERNAL XTAL SPECFICATION ........................................................................................................................... 25 3.8 AC ELECTRICAL CHARACTERISTICS ....................................................................................................................... 26 3.8.1 DDR SDRAM Interface .......................................................................................................................... 26 3.8.2 RGMII Interface .................................................................................................................................... 28 3.8.3 MII Interface (25 Mhz) ......................................................................................................................... 29 3.8.4 RvMII Interface (PHY Mode MII Timing) (25 Mhz) ............................................................................... 30 3.8.5 SPI Interface ......................................................................................................................................... 31 3.8.6 I2S Interface ......................................................................................................................................... 32 3.8.7 PCM Interface ...................................................................................................................................... 33 3.8.8 I2C Interface ......................................................................................................................................... 33 3.8.9 SDIO Interface ...................................................................................................................................... 34 3.8.10 NAND Flash Interface (Samsung Compatibel Device) ........................................................................ 35 2.1 BALL MAP (TOP VIEW) ....................................................................................................................................... 9 2.2 PIN DESCRIPTIONS ........................................................................................................................................... 10 2.3 PIN SHARING SCHEMES ..................................................................................................................................... 17 2.3.1 GPIO pin share scheme ........................................................................................................................ 17 2.3.2 UART pin share scheme ....................................................................................................................... 18 2.3.3 RGMII pin share schemes ..................................................................................................................... 19 2.3.4 WDT_RST_MODE pin share scheme .................................................................................................... 19 2.3.5 PERST_N pin share scheme .................................................................................................................. 19 2.3.6 MDC/MDIO pin share scheme ............................................................................................................. 19 2.3.7 NAND/SDXC/SPI pin share scheme ...................................................................................................... 20 2.3.8 Pin share function description ............................................................................................................. 21 2.3.9 xMII PHY/MAC Pin Mapping ................................................................................................................ 22 2.4 STRAPPING OPTIONS ........................................................................................................................................ 23 3. ELECTRICAL CHARACTERISTICS ................................................................................................................... 24 MT7621A_Data_Sheet_v0.4 loginid=stonexu@zioncom.net,time=2014-05-29 11:44:05,ip=183.16.164.220,doctitle=MT7621A_Datasheet_v0_4.docx,company=Zioncom Technology Co.LTD(吉翁)_RLT Page 3 of 45
MT7621A Network Processor 3.8.11 Power On Sequence ........................................................................................................................... 38 6. REVISION HISTORY ..................................................................................................................................... 45 5. ABBREVIATIONS ......................................................................................................................................... 42 4. PACKAGE INFORMATION ........................................................................................................................... 39 4.1 DIMENSIONS - TFBGA (11.7 MM X 13.6 MM) ..................................................................................................... 39 4.1.1 Diagram Key ........................................................................................................................................ 40 4.2 REFLOW PROFILE GUIDELINE .............................................................................................................................. 40 4.3 TOP MARKING ................................................................................................................................................ 41 4.4 ORDERING INFORMATION .................................................................................................................................. 41 FOR stonexu@ zioncom.net USE ONLY MEDIATEK CONFIDENTIAL MT7621A_Data_Sheet_v0.4 loginid=stonexu@zioncom.net,time=2014-05-29 11:44:05,ip=183.16.164.220,doctitle=MT7621A_Datasheet_v0_4.docx,company=Zioncom Technology Co.LTD(吉翁)_RLT Page 4 of 45
MT7621A Network Processor List of Figures FIGURE 2-1 MII  MII PHY ..................................................................................................................................... 22 FIGURE 2-2 RVMII  MII MAC ................................................................................................................................ 22 FIGURE 2-3 RGMII  RGMII PHY ............................................................................................................................. 22 FIGURE 2-4 RGMII RGMII MAC ........................................................................................................................... 22 FIGURE 3-1 DDR2 SDRAM COMMAND TIMING ............................................................................................................ 26 FIGURE 3-2 DDR2 SDRAM WRITE TIMING ................................................................................................................... 26 FIGURE 3-3 DDR2 SDRAM READ TIMING .................................................................................................................... 27 FIGURE 3-4 RGMII TIMING ........................................................................................................................................ 28 FIGURE 3-5 MII TIMING ............................................................................................................................................. 29 FIGURE 3-6 RVMII TIMING ......................................................................................................................................... 30 FIGURE 3-7 SPI TIMING ............................................................................................................................................. 31 FIGURE 3-8 I2S TIMING ............................................................................................................................................. 32 FIGURE 3-9 PCM TIMING ........................................................................................................................................... 33 FIGURE 3-10 I2C TIMING ........................................................................................................................................... 33 FIGURE 3-11 SDIO TIMING ........................................................................................................................................ 34 FIGURE 3-12 NAND FLASH COMMAND TIMING ............................................................................................................. 35 FIGURE 3-13 NAND FLASH ADDRESS LATCH TIMING ....................................................................................................... 35 FIGURE 3-14 NAND FLASH WRITE TIMING ................................................................................................................... 36 FIGURE 3-15 NAND FLASH READ TIMING ..................................................................................................................... 36 FIGURE 3-16 POWER ON SEQUENCE ............................................................................................................................ 38 FIGURE 4-1 PACKAGE DIMENSION ................................................................................................................................ 39 FIGURE 4-2 REFLOW PROFILE ....................................................................................................................................... 41 FIGURE 4-3 TOP MARKING .......................................................................................................................................... 41 FOR stonexu@ zioncom.net USE ONLY MEDIATEK CONFIDENTIAL MT7621A_Data_Sheet_v0.4 loginid=stonexu@zioncom.net,time=2014-05-29 11:44:05,ip=183.16.164.220,doctitle=MT7621A_Datasheet_v0_4.docx,company=Zioncom Technology Co.LTD(吉翁)_RLT Page 5 of 45
MT7621A Network Processor List of Tables TABLE 1-1 MAIN FEATURES ........................................................................................................................................... 7 TABLE 2-1 BALL MAP .................................................................................................................................................. 9 TABLE 2-2 PIN DESCRIPTION ....................................................................................................................................... 10 TABLE 2-3 GPIO PIN SHARE ....................................................................................................................................... 17 TABLE 2-4 UART_1 PIN SHARE ................................................................................................................................... 18 TABLE 2-5 UART_2 PIN SHARE ................................................................................................................................... 18 TABLE 2-6 UART_3 PIN SHARE ................................................................................................................................... 18 TABLE 2-7 RGMII PIN SHARE ...................................................................................................................................... 19 TABLE 2-8 WDT_RST PIN SHARE ................................................................................................................................ 19 TABLE 2-9PERST_N PIN SHARE .................................................................................................................................. 19 TABLE 2-10 MDC/MDIO PIN SHARE ........................................................................................................................... 19 TABLE 2-11 NAND PIN SHARE .................................................................................................................................... 20 TABLE 2-12 STRAPPING .............................................................................................................................................. 23 TABLE 3-1 ABSOLUTE MAXIMUM RATINGS .................................................................................................................... 24 TABLE 3-2 RECOMMENDED OPERATING RANGE .............................................................................................................. 24 TABLE 3-3 DC CHARACTERISTICS .................................................................................................................................. 24 TABLE 3-4 THERMAL CHARACTERISTICS ......................................................................................................................... 25 TABLE 3-5 CURRENT CONSUMPTION ............................................................................................................................. 25 TABLE 3-6 EXTERNAL XTAL SPECIFICATIONS .................................................................................................................... 25 TABLE 3-7 DDR2 SDRAM INTERFACE DIAGRAM KEY ...................................................................................................... 27 TABLE 3-8 RGMII INTERFACE DIAGRAM KEY .................................................................................................................. 28 TABLE 3-9 MII INTERFACE DIAGRAM KEY ...................................................................................................................... 29 TABLE 3-10 RVMII INTERFACE DIAGRAM KEY ................................................................................................................ 30 TABLE 3-11 SPI INTERFACE DIAGRAM KEY ..................................................................................................................... 31 TABLE 3-12 I2S INTERFACE DIAGRAM KEY ..................................................................................................................... 32 TABLE 3-13 PCM INTERFACE DIAGRAM KEY .................................................................................................................. 33 TABLE 3-14 I2S INTERFACE DIAGRAM KEY ..................................................................................................................... 33 TABLE 3-15 SDIO INTERFACE DIAGRAM KEY .................................................................................................................. 34 TABLE 3-16 NAND INTERFACE DIAGRAM KEY ................................................................................................................ 36 TABLE 3-17 POWER ON SEQUENCE DIAGRAM KEY .......................................................................................................... 38 TABLE 4-1 PACKAGE DIAGRAM KEY .............................................................................................................................. 40 FOR stonexu@ zioncom.net USE ONLY MEDIATEK CONFIDENTIAL MT7621A_Data_Sheet_v0.4 loginid=stonexu@zioncom.net,time=2014-05-29 11:44:05,ip=183.16.164.220,doctitle=MT7621A_Datasheet_v0_4.docx,company=Zioncom Technology Co.LTD(吉翁)_RLT Page 6 of 45
DRAM Controller Table 1-1 Main Features 1. Main Features 256KB 16-bit Features MT7621A Memory DDR2 DDR3 NAND SPI Flash 800 Mbps (max 256 MByte) 1200 Mbps (max 512 MByte) MT7621A Network Processor MIPS1004Kc (880 MHz, Durl Core) 32 KB, 32 KB CPU I-Cache, D-Cache L2 Cache HNAT/HQoS HQoS 16 queues HNAT 2 Gbps forwarding (IPv4, IPv6 routing, DS-Lite, 6RD, 6to4) The following table covers the main features offered by the MT7621A. Overall, the MT7621A supports the requirements of an high-level AP/router, and a number of interfaces together with a large maximum RAM capacity. FOR stonexu@ zioncom.net USE ONLY MEDIATEK CONFIDENTIAL MT7621A switch is a highly integrated Ethernet switch with high performance and non-blocking transmission. It includes a 5-port Gigabit Ethernet MAC and a 5-port Gigabit Ethernet PHY for Dumb and Smart Switch applications. MT7621A enables an advanced power-saving feature to meet the market requirement. It complies with IEEE803.3az for Energy Efficient Ethernet and cable-length/link-down power saving mode. MediaTek's industry-leading techniques provide customers with the most cost-competitive and lowest power consumption Ethernet product in the industry. SD eMMC PCIe USB Ethernet I2S PCM I2C SPDIF-Tx UART Lite JTAG Package Small page 512-Byte (max 512 Mbit) Large page 2k-Byte (max 8 Gbit) SD-XC class 10 (max 128 GByte) 4-bit eMMC (max 8 GByte) 3B addr mode (max 128 Mbit) 4B addr mode (max 512 Mbit) USB3 x 1+ USB2 x 1 or USB2 x 2 1.1 Switch core 1.1.1 Overview 5-port GSW + RGMII(1) 3 1 1 1 1 3 1 TFBGA 11.7 mm x 13.6 mm MT7621A_Data_Sheet_v0.4 loginid=stonexu@zioncom.net,time=2014-05-29 11:44:05,ip=183.16.164.220,doctitle=MT7621A_Datasheet_v0_4.docx,company=Zioncom Technology Co.LTD(吉翁)_RLT Page 7 of 45
 Supports RSTP and MSTP Supports 802.1X                        Supports 4K VLAN entries Supports 64 sets of ACL rules Supports double tagging VLAN Supports hardware port isolation Supports 8 priority queues per port Supports ingress and egress rate control Supports Max-Min bandwidth scheduler Supports SVL and IVL with 8 filtering database Programmable aging timer for MAC address table Supports SP, WFQ, and SP+WFQ latency scheduler Supports VLAN ID tag and un-tag options for each port Supports IPv4 and IPv6 multicast frames hardware forwarding Supports programmable 1518/1536/1552 and 9K Jumbo frame length MT7621A Network Processor 1.1.2 Features 5-port 10/100/1000Mbps MDI transceivers  Accessible MAC address table with 2048 entries and auto aging and learning capabilities  FOR stonexu@ zioncom.net USE ONLY MEDIATEK CONFIDENTIAL 10Base-T, 10Base-Te, 100Base-TX, and 1000Base-T compliant Transceivers Supports Broadcast/Multicast/Unknown frames storm suppression Supports IEEE 802.3az Energy Efficient Ethernet Compliant with IEEE 802.3 Auto-Negotiation Supports 40 MIB counters per port Supports short-cable power saving Supports Loop detection indicator Supports 3 LEDs per GEPHY port Integrated MDI resistors MT7621A_Data_Sheet_v0.4 loginid=stonexu@zioncom.net,time=2014-05-29 11:44:05,ip=183.16.164.220,doctitle=MT7621A_Datasheet_v0_4.docx,company=Zioncom Technology Co.LTD(吉翁)_RLT Page 8 of 45
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