User Manual

JS7688-core-board manual Hangzhou Jotale Technology Co., Ltd www.jotale.com
11
default as GPIO
15 REF_CLK_O GPIO37 N/A N/A Default as GPIO,
SYSTEM_LED
16 WDT_RST_N GPIO38 N/A N/A Default as GPIO,
USER_KEY1, high
level effective
17 EPHY_LED4_N_JTRST_N GPIO39 w_utif_n[6] jtrstn_n Default as GPIO,
WLAN_LED
18 EPHY_LED3_N_JTCLK GPIO40 w_utif_n[7] jtclk_n Default as GPIO,
LAN2_LED
19 EPHY_LED2_N_JTMS GPIO41 w_utif_n[8] jtms_n Default as GPIO,
USER_KEY2, high
level effective
20 EPHY_LED1_N_JTDI GPIO42 w_utif_n[9] jtdi_n Default as GPIO,
LAN1_LED
21 EPHY_LED0_N_JTDO GPIO43 N/A jtdo_n Default as GPIO,
WAN_LED
22 WLED_N GPIO44 N/A N/A Default as GPIO,
RESET_FN_KEY,
high level effective
23 GND N/A N/A N/A GND
24 UART_TXD1 GPIO45 PWM_CH0 antsel[1] Internally connect
10K pull-up
resistance to 3.3V,
default as
UART_TXD1
25 UART_RXD1 GPIO46 PWM_CH1 antsel[0] Default as
UART_RXD1
26
GND
N/A
N/A
N/A
GND
27 I2S_SDI GPIO0 PCMDRX antsel[5] Default as I2S_SDI
28 I2S_WS GPIO2 PCMCLK antsel[3] Default as I2S_WS
29 GND N/A N/A N/A GND
30 I2S_SDO GPIO1 PCMDTX antsel[4] Internally connect
10K pull-down
resistance to GND,
default as I2S_SDO
31 I2S_CLK GPIO3 PCMFS antsel[2] Default as I2S_CLK
32 GND N/A N/A N/A GND
33 I2C_SCLK GPIO4 sutif_txd ext_bgclk Default as
I2C_SCLK
34 I2C_SD GPIO5 sutif_rxd N/A Default as I2C_SD
35 VDD3V3_PROG N/A N/A N/A External Flash
burner power
supply DC 3.3V