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Smart Module Series
SA800U-WF Hardware Design
SA800U-WF_Hardware_Design 36 / 106
UFS_RX_P
J1-29
AI
UFS card receive
(+)
UFS_RX_M
J1-27
AI
UFS card receive
(-)
PWM Interfaces
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
PWM_PMI_GPIO5
J2-146
DO
PWM output
1.8 V power
domain.
PWM_PMI_GPIO8
J2-144
DO
PWM output
Flashlight Interfaces
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
FLASH_LED1
J4-23,
J4-24
AO
Flash/torch driver
output 1
I
LED1
= 1.5 A
Support flash and
torch modes.
FLASH_LED2
J4-20,
J4-21
AO
Flash/torch driver
output 2
I
LED2
= 1.5 A
FLASH_LED3
J4-5,
J4-6
AO
Flash/torch driver
output 3
I
LED3
= 0.75 A
VRTC Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
VRTC
J2-133
PI/P
O
Power supply for
RTC
Vnom = 3.2 V
V
I
= 2.5
–3.2 V
Emergency Download Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics Comment
USB_BOOT
J2-130
DI
Forces the
module into
emergency
download mode
Pulling it up to
VREG_S4A_1V8
during power-up
will force the
module to enter
emergency
download mode.
I2C Interfaces
Pin Name
Pin No.
I/O
Description
DC Characteristics Comment
I2C4_SDA
J2-4
OD
I2C4 data
1.8 V power
domain.
I2C4_SCL
J2-6
OD
I2C4 clock