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SC806Hardware User ManualPage20 of 70
KEY_VOL_UP
95
DI
Low effect
KEY_VOL_DOWN
96
DI
Volume -
Low effect
KEY_RST_N
179
DI
Reset pin
PMIC reset input, low effect
USIM interface
Pin Name
Pin No.
I/O
Pin Description
Note
USIM1_DIO
25
I/O
SIM card 1 data signal
USIM1_CLK
24
DO
SIM card 1 clock signal
USIM1_RST
23
DO
SIM card 1 reset signal
USIM1_ DET
22
DI
SIM card 1 plug detection
pin
Fixed level when not in use
USIM2_DIO
20
I/O
SIM card 2 data signal
USIM2_CLK
19
DO
SIM card 2 clock signal
USIM2_RST
18
DO
SIM card 2 reset signal
USIM2_ DET
17
DI
SIM card 2 plug detection
pin
Fixed level when not in use
SDcard interface
Pin Name
Pin No.
I/O
Pin Description
Note
SD_D3
44
I/O
SD card data interface
SD_D2
43
I/O
SD card data interface
SD_D1
42
I/O
SD card data interface
SD_D0
41
I/O
SD card data interface
SD_CLK
39
DO
SD card clock
SD_CMD
40
I/O
SD
cardcommand
interface
SD_DET
45
DI
SD card detection
Low level is effective
I2Cinterface