User Manual

JS7688-core-board manual Hangzhou Jotale Technology Co., Ltd www.jotale.com
9
SD_CLK
56 MDI_R_P4_N SD_CMD GPIO27 w_utif[15] dbg_uart_t Default as
SD_CMD
57 MDI_T_P4_P SD_D3 GPIO28 w_utif[16] w_jtms Default as
SD_D3
58 MDI_T_P4_N SD_D2 GPIO29 w_utif[17] w_jtrst_n Default as
SD_D2
59 GND N/A N/A N/A GND
60 USB_N N/A N/A N/A USB negative
port
61 USB_P N/A N/A N/A USB positive
port
Note: When the chip is in "gateway mode", the pin function of the associated network port
multiplexing is unavailable. In this case, the pin function of these multiplexed pins is ethernet
port. While in "Internet of Things device mode", the Ethernet function of these multiplexed pins
is not available and other multiplexing functions are available.JS7688 pin header version and
JS7628 pin header version pin fully compatible in the common motherboard.
2.2 Stamp hole packaging
2.2.1 Real photos
2.2.2 Pins introduction and product size