User's Manual

Shenzhen Synchron Electronics Co.,Ltd.
SPI_MOSI 9 SPI data input
SPI_CLK 10 SPI clock
SPI_MISO 11 SPI data output
SPI_CS# 12 Chip select for SPI, active low
UART_RX 13 UART data input
UART_TX 14 UART data output
UART_RTS 15
UART request to send, active low
Alternative function PIO[16]
UART_CTS 16 UART clear to send, active low
GND 17 Ground
RST# 18
Reset if low. Input debounced so must be low
for >5ms to cause a reset
PIO[0] 19 Programmable input / output line
GND 20 Ground
LED[0]_GREEN 21
LED driver LED[2]_RED 22
LED[1]_BLUE 23
PIO[1] 24
Programmable input / output line
PIO[2] 25
PIO[3] 26
PIO[15] 27
PIO[4] 28
PIO[6] 29
PIO[7] 30
PIO[14] 31
PIO[11] 32
GND 33 Ground
USB_P 34
USB data plus with selectable internal 1.5kΩ
pull-up resistor
USB_N 35 USB data minus
GND 36 Ground
VBAT_SENSE 37 Battery charger sense input
GND 38 Ground
VBAT 39 Battery positive terminal
CHG_EXT 40 External battery charger control
VBUS 41 Battery charger input
GND 42 Ground