HF-LPS170 Wi-Fi&BLE User Manual
Shanghai High-Flying Electronics Technology Co., Ltd(www.hi-flying.com)
- 11 -
Pin
Description
Net Name
Signal Type
Comments
6
BT_HOST_WAK
E_DEV
I/O
3.3V Voltage
GPIO12
SPI, I2C, PWM, ADC
7
BT_DEV_WAKE
_HOST
I/O
3.3V Voltage
GPIO11
SPI, I2C, PWM, ADC
8
Module
Reset
EXT_RESET
I,PU
3.3V Voltage
“Low” effective reset input. There is RC
reset circuit internally. No need of
external RC reset circuit.
9
+3.3V Power
VDD
Power
12
WL_DIS#
I/O
VDDIO Voltage (1.8V/3.3V)
GPIO21
SPI, I2C, PWM
13
WL_DEV_WAKE
_HOST
I/O
VDDIO Voltage (1.8V/3.3V)
GPIO20
SPI, I2C, PWM
14
SD_D2
I/O
VDDIO Voltage (1.8V/3.3V)
SDIO DATA2, GPIO4
15
SD_D3
I/O
VDDIO Voltage (1.8V/3.3V)
SDIO DATA3, GPIO5
16
SD_CMD
I/O
VDDIO Voltage (1.8V/3.3V)
SDIO CMD, GPIO1
17
SD_CLK
I/O
VDDIO Voltage (1.8V/3.3V)
SDIO CLK, GPIO0
18
SD_D0
I/O
VDDIO Voltage (1.8V/3.3V)
SDIO DATA0, GPIO2
19
SD_D1
I/O
VDDIO Voltage (1.8V/3.3V)
SDIO DATA1, GPIO3
22
IO Power
VDDIO
Power
3.3V or 1.8V Power Input
24
32L_IN
Analog
32.768K clock in, leave it open if not
use
34
BT_DIS#
I/O
VDDIO Voltage (1.8V/3.3V)
GPIO22
SPI, I2C, PWM
41
UART_RTS
UART_RTS
I/O
VDDIO Voltage (1.8V/3.3V)
GPIO17
SPI, I2C, PWM
42
UART_TX
UART_TX
I/O
VDDDIO Voltage (1.8V/3.3V) UART
Communication Output
GPIO16
43
UART_RX
UART_RX
I/O
3.3V UART Communication Input
GPIO7
44
UART_CTS
UART_CTS
I/O
3.3V Voltage
GPIO14
SPI, I2C, PWM, ADC, DAC
Note:
VDDIO
:
Some IO use this IO voltage, if input 1.8V, then these IO all use 1.8V voltage.
NC
:
means no connection. it is unconnected and useless.