Em357 Pin Mappings - Digi XBee S2C Zigbee User Manual

Hardware
Pin
# Name
12 CTS/DIO7
13 ON_SLEEP/DIO9
14 VREF
15 ASSOCIATE/DIO5
16 RTS/DIO6
17 AD3/DIO3/SPI_SSEL
18 AD2 /DIO2/SPI_CLK
19 AD1/DIO1/SPI_ATTN
20 AD0/DIO0/CB

EM357 pin mappings

The following table shows how the EM357 pins are used on the device.
Note Some lines may not go to the external device pins in the programmable secondary processor
version.
EM357
pin# EM357 pin name
12 RST
18 PA7
19 PB3
20 PB4
21 PA0/ SC2MOSI
22 PA SC2MISO
24 PA2/SC2SCLK
25 PA3/SC2SSEL
26 PA4/PTI_EN
27 PA5/PTI_
DATA/BOOTMODE
XBee/XBee-PRO® S2C Zigbee® RF Module User Guide
Default
Direction state
Both Output
Both Output
- -
Both Output
Both Input
Both Disabled
Both Disabled
Both Disabled
Both Disabled
XBee XBee
(SMT) (TH)
pad# pin # Other usage
6 5 Programming
8 7
29 16 Used for UART
25 12 Used for UART
16 11 Used for SPI
17 4
Used for SPI
14 18
Used for SPI
15 17
Used for SPI
32 19 OTA packet tracing
12 NA OTA packet tracing, force embedded serial
bootloader, and SPI attention line
EM357 pin mappings
Description
Clear-to-send flow control/GPIO
Device status indicator/GPIO
Not connected
Associate indicator/GPIO
Request to send flow control/ GPIO
Analog input/GPIO/SPI slave select
Analog input/GPIO/SPI clock
Analog input/GPIO/SPI attention
Analog input/GPIO/ Commissioning
button
45