User's Manual

ATM100
Version 1.0 page 7 of 14
I/O Pin Description
No Pin Name I/O Description
AVM100
TX Module
AVM100
RX Module
1 VDD PWR +5.0V input supply
voltage
2 VDD PWR +5.0V input supply
voltage
3 GPIO I/O Function defined by
firmware application
GPIO ADOUT0 RX =
Output
4 GPIO I/O Function defined by
firmware application
GPIO GPIO
5 GPIO I/O Function defined by
firmware application
GPIO GPIO
6 Reset I Driven from open drain
external source.
Can be left open
Reset Reset
7 I2C_SCL_S /
S_MISO
I/O I2C slave or SPI slave
port
I2C_SCL_S LED RED,
firmware upgrade
8 I2C_SDA_S /
S_MOSI
I/O I2C slave or SPI slave
port
I2C_SDA_S LED RED,
firmware upgrade
9 I2C_SCL_M O I2C master or GPIO GPIO I2C_SCL_M
10 I2C_SDA_M I/O I2C master or GPIO GPIO I2C_SCL_M
11 S_SCLK I SPI slave port or GPIO GPIO GPIO
12 GND GND Ground
13 BCK1 I/O I2S port BCLK1, TX module
= Input
POWER
14 WCLK1 I/O I2S port WCLK1, TX module
= Input
GPIO
15 S_SSB I SPI slave port or GPIO GPIO GPIO
16 MCLK I/O I2S port or GPIO GPIO/MCLK RX = 12.000MHz
output
17 ADIN1 I/O I2S port ADIN1, TX module
= Input
GPIO
18 M_SSB/GPIO17 O SPI master port or GPIO GPIO GPIO
19 M_SCLK/GPIO1 O SPI master port or GPIO GPIO GPIO
20 M_MOSI O SPI master port NC NC
21 M_MISO I SPI master port NC NC
22 GPIO I/O Function defined by
firmware application
LED1 BCLK0
23 GPIO I/O Function defined by
firmware application
LED2 WCLK0
24 GND GND Ground