Ehong EH-MB18, Руководство пользователя

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Bluetooth Audio Module
Ehong Technology Co., Ltd
internal pull-up/down
29 PIO5
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line or
I2C SCL
30 PIO14
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
31 PIO4
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
32 VDD_3V3 Power Supply +2.7V- +3.6V power input
33 GND Ground Ground
34 VDD_CHG Charger input +4.7V--+5.7V charge input
35 QSPI_FALSH_IO3
Bi-directional with strong
internal pull-down
Serial quad I/O flash data bit 3
36 QSPI_FLASH_CS
Bi-directional with strong
internal pull-up
SPI flash chip select
37 QSPI_FLASH_CLK
Bi-directional with strong
internal pull-down
SPI flash clock
38 QSPI_FLASH_IO0
Bi-directional with strong
internal pull-down
Serial quad I/O flash data bit 0
39 QSPI_FLASH_IO2
Bi-directional with strong
internal pull-down
Serial quad I/O flash data bit 2
40 QSPI_FLASH_IO1
Bi-directional with strong
internal pull-down
Serial quad I/O flash data bit 1
41 QSPI_SRAM_CLK
Bi-directional with strong
internal pull-down
SPI RAM clock
42 QSPI_SRAM_CS
Bi-directional with strong
internal pull-up
SPI RAM chip select
43 MIC_RN Analogue Microphone input negative, right
44 MIC_RP Analogue Microphone input positive, right
45 MIC_BIAS_B
Analogue out Microphone bias B
46 MIC_LN Analogue Microphone input negative, right
47 MIC_LP Analogue Microphone input positive, left
48 MIC_BIAS_A
Analogue out Microphone bias A
49 SPK_RP Analogue Speaker output positive, right
50 SPK_RN Analogue Speaker output negative, right
51 SPK_LN Analogue Speaker output negative, left