读写模块引脚说明.txt

使用RC531读卡芯片读取二代身份证的模块软件设计部分

读写模块DIP40的引脚定义如下：

1  --- GND             40 --- VDD
2  --- GND             39 --- VDD
3  --- GND             38 --- VDD
4  --- GND             37 --- VDD
5  --- GND             36 --- NONE
6  --- GND             35 --- NONE
7  --- GND             34 --- SS
8  --- GND             33 --- SCK
9  --- GND             32 --- MOSI
10 --- GND             31 --- MISO
11 --- GND             30 --- RST
12 --- OSC1            29 --- PTA0
13 --- D+              28 --- PTA1
14 --- D-              27 --- PTA2
15 --- VDD             26 --- PTA3
16 --- GND             25 --- OSC1
17 --- NONE            24 --- VDD
18 --- NONE            23 --- GND
19 --- NONE            22 --- NONE
20 --- NONE            21 --- IRQ

说明：
(1)电源
VDD、GND接外部+5V直流电源和地
(2)MON08接口
21脚～30脚为JB8的MON08接口，供程序下载用
(3)SPI接口
31脚～34脚的MISO、MOSI、SCK和SS为读写模块的SPI从机接口
(4)USB接口
13脚～16脚为JB8的USB1.1通信接口
(5)NONE
引脚悬空