KEA128 子系列参考手册
支持:S9KEAZ64AMLK(R)、S9KEAZ128AMLK(R)、
S9KEAZ64AVLK(R)、S9KEAZ128AVLK(R)、S9KEAZ64ACLK(R)、
S9KEAZ128ACLK(R)、S9KEAZ64AMLH(R)、S9KEAZ128AMLH(R)、
S9KEAZ64AVLH(R)、S9KEAZ128AVLH(R)、S9KEAZ64ACLH(R)和
S9KEAZ128ACLH(R)
Document Number: S9KEA128Z80M48SF0RM
Rev 2, July 2014
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Freescale Semiconductor, Inc.
KEA128 子系列参考手册, Rev. 2, July 2014
小节编号
内容
标题
第 1 章
关于本文档
页
1.1 概述.................................................................................................................................................................................37
1.1.1 目的..................................................................................................................................................................37
1.1.2 受众..................................................................................................................................................................37
1.2 惯例.................................................................................................................................................................................37
1.2.1 编码系统..........................................................................................................................................................37
1.2.2 印刷符号..........................................................................................................................................................38
1.2.3 特殊术语..........................................................................................................................................................38
第 2 章
简介
2.1 概述.................................................................................................................................................................................39
2.2 模块功能类别.................................................................................................................................................................39
2.2.1
ARM Cortex-M0+内核模块............................................................................................................................40
2.2.2 系统模块..........................................................................................................................................................41
2.2.3 存储器和存储器接口......................................................................................................................................41
2.2.4 时钟..................................................................................................................................................................42
2.2.5 安全性和完整性模块......................................................................................................................................42
2.2.6 模拟模块..........................................................................................................................................................42
2.2.7 定时器模块......................................................................................................................................................43
2.2.8 通信接口..........................................................................................................................................................43
2.2.9 人机接口..........................................................................................................................................................44
2.2.10 可订购部件编号..............................................................................................................................................44
第 3 章
芯片配置
3.1 简介.................................................................................................................................................................................45
3.2 模块间互连.....................................................................................................................................................................45
3.2.1 互连概述..........................................................................................................................................................45
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KEA128 子系列参考手册, Rev. 2, July 2014
小节编号
标题
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3.2.2 模拟基准选项..................................................................................................................................................49
3.2.3
ACMP 输出捕捉............................................................................................................................................. 49
3.2.4
UART0_TX 调制............................................................................................................................................ 50
3.2.5
UART0/1/2_RX 捕捉...................................................................................................................................... 50
3.2.6
UART0_RX 滤波器........................................................................................................................................ 51
3.2.7
RTC 捕捉.........................................................................................................................................................51
3.2.8
FTM2 软件同步.............................................................................................................................................. 51
3.2.9
ADC 硬件触发................................................................................................................................................ 52
3.3 内核模块.........................................................................................................................................................................52
3.3.1
ARM Cortex-M0+内核配置............................................................................................................................52
3.3.1.1
ARM Cortex M0+内核 ...............................................................................................................53
3.3.1.2
总线、互连和接口......................................................................................................................54
3.3.1.3
系统节拍定时器..........................................................................................................................54
3.3.1.4
内核特权级别..............................................................................................................................54
3.3.1.5
缓存器..........................................................................................................................................55
3.3.2 可嵌套向量的中断控制器(NVIC)配置......................................................................................................... 55
3.3.2.1
中断优先级..................................................................................................................................55
3.3.2.2
不可屏蔽中断..............................................................................................................................55
3.3.2.3
中断通道分配..............................................................................................................................56
3.3.3 异步唤醒中断控制器(AWIC)配置................................................................................................................ 58
3.3.3.1
唤醒源..........................................................................................................................................58
3.4 系统模块.........................................................................................................................................................................59
3.4.1
SIM 配置..........................................................................................................................................................59
3.4.2
PMC 配置........................................................................................................................................................ 60
3.4.3 MCM 配置.......................................................................................................................................................61
3.4.4 简化交叉开关配置..........................................................................................................................................61
3.4.4.1
简化交叉开关主机分配..............................................................................................................62
3.4.4.2
交叉开关从机分配......................................................................................................................62
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KEA128 子系列参考手册, Rev. 2, July 2014
小节编号
标题
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3.4.5 外设桥配置......................................................................................................................................................63
3.4.5.1
外设桥的数量..............................................................................................................................63
3.4.5.2
存储器映像..................................................................................................................................63
3.5 系统安全性.....................................................................................................................................................................64
3.5.1
CRC 配置.........................................................................................................................................................64
3.5.2 WDOG 配置.................................................................................................................................................... 64
3.5.2.1
WDOG 时钟................................................................................................................................ 65
3.5.2.2
WDOG 操作................................................................................................................................ 65
3.6 时钟模块.........................................................................................................................................................................66
3.6.1
ICS 配置.......................................................................................................................................................... 66
3.6.1.1
时钟门控......................................................................................................................................67
3.6.2
OSC 配置.........................................................................................................................................................67
3.7 存储器和存储器接口.....................................................................................................................................................68
3.7.1
Flash 存储器配置............................................................................................................................................ 68
3.7.1.1
Flash 存储器大小........................................................................................................................ 68
3.7.1.2
Flash 存储器映像........................................................................................................................ 69
3.7.1.3
备用非易失性 IRC 用户微调说明............................................................................................. 69
3.7.1.4
Flash 加密.................................................................................................................................... 70
3.7.1.5
擦除所有 Flash 内容................................................................................................................... 70
3.7.2
Flash 存储器控制器配置................................................................................................................................ 70
3.7.3
SRAM 配置..................................................................................................................................................... 71
3.7.3.1
SRAM 大小................................................................................................................................. 71
3.7.3.2
SRAM 范围................................................................................................................................. 72
3.7.3.3
SRAM 位操作............................................................................................................................. 73
3.8 模拟.................................................................................................................................................................................74
3.8.1
12 位模数转换器(ADC)配置..........................................................................................................................74
3.8.1.1
ADC 实例化信息........................................................................................................................ 74
3.8.1.2
ADC0 连接/通道分配................................................................................................................. 75
3.8.1.3
ADC 模拟电源和基准连接........................................................................................................ 76
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KEA128 子系列参考手册, Rev. 2, July 2014
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3.8.1.4
温度传感器和带隙基准..............................................................................................................76
3.8.1.5
备选时钟......................................................................................................................................76
3.8.2
ACMP 配置..................................................................................................................................................... 77
3.8.2.1
ACMP 概述................................................................................................................................. 77
3.8.2.2
ACMP 互相连接......................................................................................................................... 78
3.8.2.3
Stop 模式下的 ACMP................................................................................................................. 78
3.9 定时器.............................................................................................................................................................................79
3.9.1
FlexTimer 配置................................................................................................................................................79
3.9.1.1
FTM 概述.................................................................................................................................... 79
3.9.1.2
FTM 时钟选项............................................................................................................................ 81
3.9.1.3
FTM 互连.................................................................................................................................... 81
3.9.1.4
FTM 中断.................................................................................................................................... 82
3.9.2
PIT 配置...........................................................................................................................................................82
3.9.2.1
PIT 概述.......................................................................................................................................82
3.9.2.2
PIT 互相连接...............................................................................................................................83
3.9.3
RTC 配置.........................................................................................................................................................83
3.9.3.1
RTC 概述.....................................................................................................................................83
3.9.3.2
RTC 互连.....................................................................................................................................83
3.9.4
PWT 配置........................................................................................................................................................ 84
3.9.4.1
PWT 概述.................................................................................................................................... 84
3.9.4.2
PWT 互连.................................................................................................................................... 85
3.10 通信接口.........................................................................................................................................................................85
3.10.1
SPI 配置...........................................................................................................................................................85
3.10.1.1
SPI 概述.......................................................................................................................................86
3.10.2
I2C 配置...........................................................................................................................................................86
3.10.2.1
I2C 概述.......................................................................................................................................86
3.10.2.2
I2C0 4 线式接口特性..................................................................................................................87
3.10.3 UART 配置......................................................................................................................................................87
3.10.3.1
UART 概述..................................................................................................................................88
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KEA128 子系列参考手册, Rev. 2, July 2014
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3.10.3.2
UART 互连..................................................................................................................................88
3.10.4 MSCAN 配置.................................................................................................................................................. 89
3.10.4.1 MSCAN 概述.............................................................................................................................. 89
3.10.4.2 MSCAN 时钟源.......................................................................................................................... 89
3.10.4.3 MSCAN 唤醒中断和去抖滤波器.............................................................................................. 90
3.11 人机接口(HMI).............................................................................................................................................................. 90
3.11.1 GPIO 配置....................................................................................................................................................... 90
3.11.1.1
GPIO 概述................................................................................................................................... 90
3.11.2 KBI 配置..........................................................................................................................................................91
3.11.2.1
KBI 概述......................................................................................................................................91
3.11.2.2
KBI 分配......................................................................................................................................91
3.11.3
IRQ 配置..........................................................................................................................................................92
3.11.3.1
IRQ 分配......................................................................................................................................92
第 4 章
存储器映像
4.1 简介.................................................................................................................................................................................93
4.2 系统存储器映像.............................................................................................................................................................93
4.3 位带区别名.....................................................................................................................................................................94
4.4 位操作引擎.....................................................................................................................................................................95
4.5 系统 ROM 存储器映像................................................................................................................................................. 95
4.5.1 入口 (ROM_ENTRYn)....................................................................................................................................97
4.5.2 表格标记寄存器结束 (ROM_TABLEMARK).............................................................................................. 97
4.5.3 系统访问寄存器 (ROM_SYSACCESS)........................................................................................................ 98
4.5.4 外设 ID 寄存器 (ROM_PERIPHIDn).............................................................................................................98
4.5.5 组件 ID 寄存器 (ROM_COMPIDn)............................................................................................................... 99
4.6 外设桥(AIPS-Lite)存储器映像..................................................................................................................................... 99
4.6.1 先写后读序列和存储器操作所需的串行化..................................................................................................100
4.6.2 外设桥(AIPS-Lite)存储器映像.......................................................................................................................100
4.7 专用外设总线(PPB)存储器映像...................................................................................................................................104
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KEA128 子系列参考手册, Rev. 2, July 2014
小节编号
标题
第 5 章
时钟分布
页
5.1 简介.................................................................................................................................................................................105
5.2 编程模型.........................................................................................................................................................................105
5.3 器件时钟连接示意图.....................................................................................................................................................105
5.4 时钟定义.........................................................................................................................................................................106
5.4.1 器件时钟汇总..................................................................................................................................................107
5.4.2 时钟分布..........................................................................................................................................................108
5.5 内部时钟源.....................................................................................................................................................................109
5.6 外部时钟源.....................................................................................................................................................................109
5.7 时钟选通.........................................................................................................................................................................110
5.8 模块时钟.........................................................................................................................................................................110
5.8.1
FTM 和 PWT 计时.......................................................................................................................................... 112
第 6 章
复位与引导
6.1 简介.................................................................................................................................................................................115
6.2 复位.................................................................................................................................................................................115
6.2.1 上电复位(POR)............................................................................................................................................... 115
6.2.2 系统复位源......................................................................................................................................................116
6.2.2.1
外部引脚复位(RESET)...............................................................................................................116
6.2.2.2
低压检测(LVD)...........................................................................................................................116
6.2.2.3
WDOG 定时器............................................................................................................................ 117
6.2.2.4
ICS 时钟丢失(LOC)....................................................................................................................117
6.2.2.5
Stop 模式应答错误(SACKERR) ............................................................................................... 117
6.2.2.6
软件复位(SW)............................................................................................................................. 117
6.2.2.7
死锁复位(LOCKUP)................................................................................................................... 118
6.2.2.8
MDM-AP 系统复位请求............................................................................................................ 118
6.2.3 MCU 复位........................................................................................................................................................118
6.2.3.1
仅 POR ........................................................................................................................................118
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Freescale Semiconductor, Inc.
KEA128 子系列参考手册, Rev. 2, July 2014