YUGE CLM920 NC3, Руководство по оборудованию, Страница: 23 / 80

CLM920_NC3_LTE Module hardware manual
Shanghai Yuge Information Technology co., LTD - 23 -
Pin Pin definition IO Functional description Remarks
24 PCM_IN DI PCM receiving data Keep empty when not in use
25 PCM_OUT DO PCM sends data Keep empty when not in use
26 PCM_SYNC IO PCM frame sync signal Keep empty when not in use
27 PCM_CLK IO PCM clock pulse Keep empty when not in use
I2C interface
Pin Pin definition IO Functional description Remarks
41 SCL DO I2C bus clock Keep empty when not in use
42 SDA I/O I2C bus data Keep empty when not in use
SDIO interface
Pin Pin definition IO Functional description Remarks
23 SD_CARD_DET DI SD card insertion
detection Keep empty when not in use
28 SDC2_D3 IO SDIO bus DATA3 Keep empty when not in use
29 SDC2_D2 IO SDIO bus DATA2 Keep empty when not in use
30 SDC2_D1 IO SDIO bus DATA1 Keep empty when not in use
31 SDC2_D0 IO SDIO bus DATA0 Keep empty when not in use
32 SDC2_CLK DO SDIO bus clock output Keep empty when not in use
33 SDC2_CMD DI SDIO bus command input Keep empty when not in use
34 VDD_SDIO PO SDIO bus pull-up power
supply
Output is configurable,
please keep it floating when
not in use
SPI interface
Pin Pin definition IO Functional description Remarks
37 SPI_CS_N DO SPI chip selection
Reuse I2S_D1 (keep it floating
when not in use)
38 SPI_MOSI DO SPI data output
Reuse I2S_WS (keep it idle
when not in use)
39 SPI_MISO DI SPI data input Reuse I2S_D0 (keep it floating