SHA20 Connector Pin Assignment


Figure 1. Connector, Front view.

Connector A

Pin Name SPI I2C JTAG SWD UART -
1 GND Common / GND
2 VUSB USB 5V
Port 1
3 GPIO00 SCK SCL TCK SWDCLK TXD
4 GPIO01 MOSI SDA (1) TDI SWDIO (2) RXD
5 GPIO02 MISO SDA (1) TDO SWDIO (2) RTS
6 GPIO03 GPIO/CS GPIO TMS GPIO CTS
7 GPIO04 GPIO/CS GPIO GPIO GPIO DTR
8 GPIO05 GPIO/CS GPIO GPIO GPIO DSR
9 GPIO06 GPIO/CS GPIO GPIO GPIO DCD
10 GPIO07 GPIO/CS GPIO GPIO GPIO RI
11 GPIO08 GPIO/CS GPIO GPIO GPIO *
12 GPIO09 GPIO/CS GPIO GPIO GPIO *
13 GPIO10 GPIO/CS GPIO GPIO GPIO *
14 GPIO11 GPIO/CS GPIO GPIO GPIO *
15 GPIO12 GPIO/CS GPIO GPIO GPIO *
16 GPIO13 GPIO/CS GPIO GPIO GPIO *
17 GPIO14 GPIO/CS GPIO GPIO GPIO *
18 GPIO15 GPIO/CS GPIO GPIO GPIO *
Auxiliary GPIO
19 GPIO16 Auxiliary GPIO
20 GPIO17 Auxiliary GPIO
21 GPIO18 Auxiliary GPIO
22 GPIO19 Auxiliary GPIO
23 GPIO20 Auxiliary GPIO
24 GPIO21 Auxiliary GPIO
25 GPIO22 Auxiliary GPIO
26 GPIO23 Auxiliary GPIO

Notes:
(1) For correct I2C operation both SDA signals (pins 4 and 5) must be tied together. The Signalyzer H2 and H4 drives SCL and SDA line high during byte transfer.

(2) For correct SWD operation both SWDIO signals (pins 4 and 5) must be tied together.

Connector B

Pin Name SPI I2C JTAG SWD UART -
1 GND Common / GND
2 VUSB USB 5V
Port 2
3 GPIO00 SCK SCL TCK SWDCLK TXD
4 GPIO01 MOSI SDA (1) TDI SWDIO (2) RXD
5 GPIO02 MISO SDA (1) TDO SWDIO (2) RTS
6 GPIO03 GPIO/CS GPIO TMS GPIO CTS
7 GPIO04 GPIO/CS GPIO GPIO GPIO DTR
8 GPIO05 GPIO/CS GPIO GPIO GPIO DSR
9 GPIO06 GPIO/CS GPIO GPIO GPIO DCD
10 GPIO07 GPIO/CS GPIO GPIO GPIO RI
11 GPIO08 GPIO/CS GPIO GPIO GPIO *
12 GPIO09 GPIO/CS GPIO GPIO GPIO *
13 GPIO10 GPIO/CS GPIO GPIO GPIO *
14 GPIO11 GPIO/CS GPIO GPIO GPIO *
15 GPIO12 GPIO/CS GPIO GPIO GPIO *
16 GPIO13 GPIO/CS GPIO GPIO GPIO *
17 GPIO14 GPIO/CS GPIO GPIO GPIO *
18 GPIO15 GPIO/CS GPIO GPIO GPIO *
Auxiliary GPIO
19 GPIO16 Auxiliary GPIO
20 GPIO17 Auxiliary GPIO
21 GPIO18 Auxiliary GPIO
22 GPIO19 Auxiliary GPIO
23 GPIO20 Auxiliary GPIO
24 GPIO21 Auxiliary GPIO
25 GPIO22 Auxiliary GPIO
26 GPIO23 Auxiliary GPIO

Notes:
(1) For correct I2C operation both SDA signals (pins 4 and 5) must be tied together. The Signalyzer H2 and H4 drives SCL and SDA line high during byte transfer.

(2) For correct SWD operation both SWDIO signals (pins 4 and 5) must be tied together.