Hardware
Rev 2 Oct.19
21
41113116
Figure 2-9: GPIO Configuration
Note: Default configuration — Solid lines
Alternate configuration — Dashed lines
Expansion connector (CN805)
CF3
GPIO42
GPIO7
GPIO8
IoT Connector #0
(CN601, slot IOT 0)
IOT0_GPIO1
IOT0_GPIO2
IOT0_GPIO3
IOT0_GPIO4
GPIO2
RESET_IOT0
GPIO6
GPIO Expander (U503)
GPIO32
INT
Light Sensor (U506)
GPIO36
GPIO_IOT0_RESET
GPIO_EXP_IN
Accelerometer/Gyrometer (U520)
GPIO38
ACC_SENSOR_INT1
GPIO21
ACC_SENSOR_INT2
NFC (U700)
GPIO23
NFC_INT0
GPIO24
Wi-Fi/BT module
(U300)
WL_HOST_WAKE
EXP_GPIO1_3V3
GPIO37
BT_RST_N
GPIO_BT_RESET
GPIO22
BT_HOST_WAKE
BT_HOST_WAKEUP
RESET_BT
SYSTEM_RESET
Generic Button (SW500)
GPIO25
GENERIC_BUTTON
Stepdown (Buck) Converter
(U900)
GPIO41
BUCK_CONV_EN
uSIM/uSD (CN602)
SW (SD detect)
LIGHT_SENSOR_INT
SPI1_SRDY
(GPIO13)
SYSTEM_RESET
LOW_POWER_RESET
RESET_IN
SYSTEM_RESET
GPIO40
PPS
EXP_GPIO2_3V3
GPIO33
