Hi-Link HLK-RM08S, User Manual

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8
HLK-RM08S
4.2. Default pins definition
Pin
Name
（ Function
1） Function 2 Function 3 Function 4 GPIO Note
1 I2S_DI PCMDRX GPIO0
2 I2S_WS PCMCLK GPIO2
3
I2S_DO
PCMDTX GPIO1
4 I2S_CLK PCMFS GPIO3
5 SPI_CS1 REF_CLKO GPIO6
6
SPI_MOSI
GPIO8
7 SPI_CLK GPIO7
8 SPI_MISO GPIO9
9
UART_TXD0
GPIO12
Default is serial port
TR
10
UART_RXD0
GPIO13
Default is serial port
TR
11 GPIO0 REF_CLKO PERST_N GPIO11
12 MDI_RP_P0 GPIO24
13
MDI_RN_P0
GPIO23
14 MDI_TP_P0 GPIO22
15 MDI_TN_P0 GPIO21
16
MDI_TP_P1
SPIS_CS PWM_CH0 GPIO14
17 MDI_TN_P1 SPIS_CLK PWM_CH1 GPIO15
18 MDI_RP_P1 SPIS_MISO UART_TXD2 GPIO16
19 MDI_RN_P1 SPI_MOSI UART_RXD2 GPIO17
20 MDI_RP_P2 eMMC_D7 PWM_CH0 GPIO18
21
MDI_RN_P2
eMMC_D6 PWM_CH1 GPIO19
22 MDI_TP_P2 UART_TXD2 eMMC_D5 PWM_CH2 GPIO20
23 MDI_TN_P2 UART_RXD2 eMMC_D4 PWM_CH3 GPIO21
24
MDI_TP_P3
SD_WP eMMC_WP GPIO22
25 MDI_TN_P3 SD_CD eMMC_CD GPIO23
26 MDI_RP_P3 SD_D1 eMMC_D1 GPIO24