PI2Embedded 502V2S
Hardware Reference Manual – P2.1 - 6/3/2016
PAGE 11
5
5
5
5
RPI
RPI
RPI
RPI GPIO
GPIO
GPIO
GPIO
5.1
OVERVIEW
The 502V2S uses a number of signals from the RPi GPIO header for control and status
purposes. This usage is defined in the following table.
RPi
2
PIN
DIR
AF PUP/
PDN
502V2S
Name
Description/Notes
1
-
-
-
-
RPi +3.3V - Unused
2
-
-
-
+5V
+5V Power to the RPi
3
I/O
Y
PUP
I2C_SDA
I2C Bus Data
4
-
-
-
+5V
+5V Power to the RPi
5
OUT
Y
PUP
I2C_SCL
I2C Bus Clock
6
-
-
-
GND
7
OUT
-
-
*SPI_RST
GPIO4/GCLK - SPI Reset to PMOD
8
OUT
Y
-
U_TXD
GPIO14/TXD – Transmit to Grove UART
9
-
-
-
GND
10
IN
Y
-
U_RXD
GPIO15/RXD – Receive from Grove UART
11
OUT
-
-
*Y_LED
GPIO17 – Low True Yellow Enable for
Green/Yellow LED
12
OUT
Y
-
I2S_BCLK
GPIO18/GEN1 - to PCM5102A Bit Clock
13
OUT
-
-
*G_LED
GPIO17 – Low True Green Enable for
Green/Yellow LED
14
-
-
-
GND
15
I/O
-
-
SPI_IO0
GPIO22/GEN3 – SPI I/O Signal to PMOD
16
-
-
-
-
GPIO23/GEN4 - Unused
17
-
-
-
-
RPi +3.3V - Unused
18
IN
-
PUP
*SPI_INT
GPIO24/GEN5 – SPI Interrupt from PMOD
19
OUT
Y
-
SPI_MOSI
GPIO10/SPI_MOSI – to PMOD
20
-
-
-
GND
