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MYD-C7Z010/20 Product User Manual
3.2.4 RS232
1 Channel RS232, DB9 interface, use for default debug serial port, connected to J6.
3.2.5 I2C
1 Channel I2C interface, use for control RTC, HDMI and Touch chip.
3.2.6 KEY
A reset KEY K1 can be reset the PS unit, a user KEY K2 can be use for input function.
3.2.7 JTAG
1 Channel 14 Pin ARM JTAG, use for debug the PS and PL, connected to J7.
3.2.8 Micro SD Card
1 Channel micro SD Card interface and connected to J19, the controller of micro SD card
is
SD/SDIO 0.
3.2.9 RTC
External RTC chip DS3231S, control using I2C. J26 is the CR2032 battery holders,
achieve the function of Real-Time Clock.
3.2.10 eMMC
The core board is equipped with 4GB eMMC on SD/SDIO/eMMC 1 controller, the CD pin
of the SD/SDIO/eMMC controller must be connected to gnd, or else the emmc will not
work properly. Please refrence the vivado project on the DVD to configure the pin.
3.3 PL Interface
