Specifications

- 9 -
Fig 1 BL3390-I pin sequence
4.2 PIN Definitions
Refer to Table 17 for testing data.
Table17 BL3390-I pin definitions
PIN
Interface1
Interface2
Interface3
Interface4
Interface5
Interface6
1
GND
2
GPIOH3
UART0_RX
3
GPIOH4
UART0_TX
4
GPIOH2
5
GPIOG7
PWM1
6
GPIOH1
PWM3
7
GPIOE2
8
GPIOE3
9
GPIOE1
10
GPIOE4
11
GPIOC3
SPI_CS
12
GND
13
USBDN
14
USBDP
15
GND
16
TXOP0