AT91SAM7XC512 /一百二十八分之二百五十六初步

目录

1

说明................................................. .............................................. 4

在AT91SAM7XC512的/ 1.1-配置摘要128分之256 .................................... 4

2

3

4

AT91SAM7XC512 /一百二十八分之二百五十六框图........................................... 5 ..

信号说明................................................ ................................... 6

包装................................................. .................................................. 9

4.1- 100引脚LQFP封装外形.......................................... .................................. 9

4.2- 100引脚LQFP封装引脚........................................... ............................................... 10

4.3- 100球TFBGA封装外形.......................................... ............................... 11

4.4- 100球TFBGA封装引脚........................................... .............................................. 11

5

电源注意事项................................................ ........................... 12

5.1电源.....................................................................................................12

5.2-功耗.............................................. ................................................ 12

5.3-稳压器.............................................. .................................................. 0.12

5.4-典型的打开电源原理图............................................. .................................. 13

6

I / O线注意事项............................................. .......................... 14

6.1 JTAG端口引脚.....................................................................................................14

6.2-测试引脚.................................................................................................................14

6.3-复位引脚...............................................................................................................14

6.4- ERASE引脚............................................................................................................14

6.5- PIO控制器线............................................. ................................................. 14

6.6- I / O线当前图形.......................................... ........................................... 15

7

处理器和架构............................................... ................... 16

7.1 ARM7TDMI处理器.............................................. ............................................ 16

7.2-调试和测试功能............................................ ......................................... 16

7.3-内存控制器.............................................. .................................................. 0.16

7.4-外设DMA控制器............................................. ....................................... 17

8

内存................................................. .................................................. 18

8.1- AT91SAM7XC512 ............................................... .................................................. 18

8.2- AT91SAM7XC256 ............................................... .................................................. 18

8.3- AT91SAM7XC128 ............................................... .................................................. 18

8.4-内存映射.............................................. .................................................. ..20

8.5-嵌入式闪存...................................................................................................21

i

6209F–ATARM–17-Feb-09