Datasheet

6.3. LEDs

There are eight LEDs on the RDK board. The green 5V (LED10) and 3V (LED9) LEDs are ON automatically when the

board is powered. There are six user LEDs (see table 6-3) that are connected to IO ports and will light when their

corresponding port pin is set low. Table 6-3, below, shows the user LED pin references and their corresponding

microcontroller port pin connections.

Circuit Net Name Function Color RL78

LED1 User Controlled Red P55 (pin 38)

LED2 User Controlled Red P62 (pin 19)

LED3 User Controlled Red P63 (pin 20)

LED4 User Controlled Green P52 (pin 35)

LED5 User Controlled Green P53 (pin 36)

LED6 User Controlled Green P54 (pin 37)

LED7 FET Green N/A

LED8 TRIAC Green N/A

LED9 3.3V Green N/A

LED10 5V Green N/A

Table 6-3: LEDs

6.4. Serial EPROM

A Renesas serial EPROM is provided for user non-volatile storage. This part, R1EX24512ASAAS0A, is 512KB and is

accessed by the I2C Bus (IICA0) with the following address with 17 bits:

I2C Address: 0xA0 (1010aaxr) aa = A2:A1 I2C address

x = A16 of memory address

r = R/W, Read/Write.

6.5. MicroSD Memory Card Slot

A MicroSD memory card slot is provided for file system data storage. This is accessed on the SPI bus (CSI10) using

chip select P30 (pin 32) on the RL78.