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GPIO_77
240
IO
GPIO_12
228
IO
GPIO_13
227
IO
GPIO_14
230
IO
GPIO_15
229
IO
GPIO_61
234
IO
GPIO_03B
11
IO
GPIO_08B
13
IO
GPIO_04B
14
IO
GPIO_05B
15
IO
GPIO_11A
211
IO
GPIO_13A
233
IO
GRFC Interfaces
Pin Name
Pin No.
GRFC_19
242
GRFC_18
241
SPI Interface
Pin
Pin Name
I/O
No.
SPI3_CS
201
DO
SPI3_CLK
200
DO
SPI3_MOSI
248
DO
SPI3_MISO
247
DI
I2S Interfaces
SC66_Hardware_Design
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
DC
I/O
Description
Characteristics
IO
GRFCDedicated
GPIO
IO
DC
Description
Characteristics
Chip selection signal
Clock signal
Master out slave in
Master in salve out
Smart LTE Module Series
SC66 Hardware Design
1.8V power domain.
1.8V power domain.
1.8V power domain.
1.8V power domain.
1.8V power domain.
1.8V power domain.
1.8V power domain.
1.8V power domain.
1.8V power domain.
1.8V power domain.
1.8V power domain.
1.8V power domain.
Comment
Only for RF debug.
It should not be pulled
up.
Cannot be multiplexed
into general-purpose
GPIOs.
Comment
1.8V power domain.
Only support master
mode.
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