Chengdu Ebyte Electronic Technology Co.,Ltd.
Copyright ©2012–2021
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Chengdu Ebyte Electronic Technology Co.,Ltd.
6
3 Size and pin definition
Pin No.
Item
Direction
Description
1
GND
-
Ground wire, connect to power reference ground
2
GPIO1
Input/Output
See CMT2300A manual for details
3
GPIO2
Input/Output
See CMT2300A manual for details
4
GPIO3
Input/Output
See CMT2300A manual for details
5
VCC
Input/Output
Power supply, 1.8V - 3.6V
6
NC
-
-
7
SDIO
Input/Output
SPI data pins
8
SLCK
Input
SPI clock pin
9
CSB
Input
Chip seleet for SPI access register
10
NC
-
-
11
FCSB
Input
Chip select for SPI access to FIFO
12
GND
-
Ground wire, connect to power reference ground
13
ANT
-
Antenna interface
14
GND
-
Ground wire, connect to power reference ground
