Data Sheet

11
E1
PB22
The MUX function GPIO pin.
I/O
E2
PB23
The MUX function GPIO pin.
I/O
E3
GND
Ground.
GND
E4
GND
Ground.
GND
E5
GND
Ground.
GND
E6
GND
Ground.
GND
E7
GND
Ground.
GND
F1
PB26
The MUX function GPIO pin.
I/O
F2
PB29
The MUX function GPIO pin.
I/O
F3
GND
Ground.
GND
F4
GND
Ground.
GND
F5
GND
Ground.
GND
F6
GND
Ground.
GND
F7
GND
Ground.
GND
G1
PB31
The MUX function GPIO pin.
I/O
G2
PA4
The MUX function GPIO pin.
I/O
G3
PA0
The MUX function GPIO pin.
I/O
G4
PA2
The MUX function GPIO pin.
I/O
G5
PA15
The MUX function GPIO pin.
I/O
G6
PA14
The MUX function GPIO pin.
I/O
G7
PA12
The MUX function GPIO pin.
I/O
H1
GND
Ground.
GND
H2
CHIP_EN
Enable Chip:1 Enable Chip, 0 Shut Down Chip
I
H3
PA7
UART_LOG_TXD, UART_DOWNLOAD
I/O
H4
PA8
UART_LOG_RXD
I/O
H5
PA13
The MUX function GPIO pin.
I/O
H6
GND
Ground.
GND
H7
RF
WIiFi/BT RF interface (option)
I/O
H8
GND
Ground.
GND
* Note: By default, Pin H3 and H4 are UART interface (Pin H3 is UART TX, Pin H4 is UART RX).
When AW-CU442 is booting, Pin H3 is strap pin (low active) to enter the flash download mode.