蜂鸟 E203 开源 SoC 简介
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Content
TABLES ............................................................................................................................................... 4
FIGURES ............................................................................................................................................. 5
1 PREFACE ..................................................................................................................................... 6
1.1 REVISION HISTORY ........................................................................................................................ 6
1.2 REFERENCE DOCUMENTATION ......................................................................................................... 6
2 总体介绍 ................................................................................................................................... 7
2.1 总体特性 ................................................................................................................................. 7
2.2 SOC 整体框图 .......................................................................................................................... 8
2.3 总线地址分配 ......................................................................................................................... 8
3 RISC-V 核介绍 .......................................................................................................................... 11
3.1 处理器核简介 ....................................................................................................................... 11
3.2 处理器核中断 ....................................................................................................................... 11
3.2.1 CLINT .................................................................................................................................. 11
3.2.2 PLIC .................................................................................................................................... 12
3.3 JTAG 调试模块 ....................................................................................................................... 14
4 SOC 总线介绍 .......................................................................................................................... 15
4.1 ICB 总线协议信号 ................................................................................................................. 16
4.2 ICB 总线协议时序 ................................................................................................................. 16
4.3 SOC 总线结构 ........................................................................................................................ 21
5 SOC 外设介绍 .......................................................................................................................... 23
5.1 QSPI MASTER ........................................................................................................................... 23
5.2 GPIO ....................................................................................................................................... 23
5.3 UART ...................................................................................................................................... 25
5.4 PWM ...................................................................................................................................... 25
5.5 ALWAYS-ON 模块 ...................................................................................................................... 25
5.5.1 WatchDog .......................................................................................................................... 25
5.5.2 RTC ..................................................................................................................................... 26
5.5.3 PMU ................................................................................................................................... 26
5.5.4 LCLKGEN ............................................................................................................................. 26
5.5.5 RESETGEN .......................................................................................................................... 26
5.6 I2C MASTER .............................................................................................................................. 26
5.7 HCLKGEN ................................................................................................................................ 27
6 SOC 片上存储器介绍 ............................................................................................................... 28
6.1 ITCM ....................................................................................................................................... 28
6.2 DTCM ..................................................................................................................................... 28
6.3 ROM ....................................................................................................................................... 28
7 SOC 电源域管理 ...................................................................................................................... 29
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