Datasheet

Chapter 9. Headers

9.1. PMOD

Interfaces

Two Digilent PMOD

(Interface Type 2A, expanded SPI) connection headers are available on the RDK. These

interfaces can be access on the SPI bus using chip selects P71 (pin 28) for PMOD1 and P72 (pin 27) for PMOD2.

PMOD

Interface connections are shown in Table 9-1.

PMOD1 PMOD2

Pin Signal Direction Circuit Name RL78 Circuit Name RL78

1 SS Out PMOD1-CS P71 (pin 28) PMOD2-CS P72 (pin 27)

2 MOSI Out MOSI SO10 MOSI SO10

3 MISO In MISO SI10 MISO SI10

4 SCK Out SCK SCK10 SCK SCK10

5 GND - Ground - Ground -

6 VCC - 3V3 - 3V3 -

7 INT In PMOD-IRQA INTP10 (pin 23) PMOD-IRQA INTP10 (pin 23)

8 RESET/INT Out PMOD-IRQB P77, INTP11 (pin 22) PMOD-IRQB P77, INTP11 (pin 22)

9 N/S N/S PMOD_PIN9 P75 (pin 24) PMOD_PIN9 P75 (pin 24)

10 N/S N/S PMOD_PIN10 P00 (pin 62) PMOD_PIN10 P00 (pin 62)

11 GND -

Ground

12 VCC -

3V3

Table 9-1: PMOD

Interfaces

9.2. Application Header (WIFI Module)

The application header J6 can be fitted with a WIFI module. These devices can be accessed UART2 or the SPI bus

(CSI10) using chip select P73 (pin 26) on the RL78. WIFI interrupt requests can be received on INTP8 (pin 25) on the

RL78. As of November 2011, several WiFi modules were available and some units released for RL78 by Gainspan Corp.

and RedPine Signals were qualified, more information at :

http://www.gainspan.com/

- http://www.redpinesignals.com/