Ebyte E78-915LN22S (6601), Руководство пользователя

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Chengdu Ebyte Electronic Technology Co., Ltd. E78-915LN22S(6601) User Manual
Copyright © 2012–20 2 1 , Chengdu Ebyte Electronic Technology Co., Ltd. 7
3.2 Pin Definition
pin number pin name Pin Orientation pin usage
1 GND - Ground wire, connected to the power reference ground
2 VCC -
Power supply, range 2.5V~3.7V (It is recommended to add
external ceramic filter capacitors)
3 SETB - Low power wake-up pin
4 DIO1 input Output NC (reserved pin)
5 BUSY input Output NC (reserved pin)
6 I2C_SDA input Output NC (reserved pin)
7 I2C_SCL input Output NC (reserved pin)
8 UART_CTS input Output NC (reserved pin)
9 UART_RTS input Output NC (reserved pin)
10 GND - Ground wire, connected to the power reference ground
11 ANT -
Antenna interface, stamp hole (50 ohm characteristic
impedance)
12 GND - Ground wire, connected to the power reference ground
13 GND - Ground wire, connected to the power reference ground
14 GND - Ground wire, connected to the power reference ground
15 GND - Ground wire, connected to the power reference ground
16 XRES enter External reset pin
17 ADC_IN enter NC (reserved pin)
18 AUX input Output NC (reserved pin)
19 SETA input Output NC (reserved pin)
20 UART_RX input Output UART RX pin
twenty one UART_TX input Output UART TX pin
twenty two SWD_DATA input Output SWD Data pin
twenty three SWD_CLK input Output SWD Clock pin
twenty four GND - Ground wire, connected to the power reference ground
25 SPI_MISO input Output
SPI MISO test point, connected internally, cannot be used
as external SPI
26 SPI_NSS input Output
SPI NSS test point, connected internally, cannot be used as
external SPI
27 SPI_MOSI input Output
SPI MOSI test point, connected internally, cannot be used
as external SPI
28 SPI_SCK input Output
SPI SCK test point, connected internally, cannot be used as
external SPI
For the pin definition, software driver and communication protocol of the module, please refer to the " ASR6601
Datasheet "
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