RK3288 Hardware Design Guide
Fig 9-1
If Nand Flash is in use, schematic diagram is shown as Fig 9-2. For Nand Flash mode in
Toshiba and SanDisk DDR, VCCQ1 and VCCQ4 need to be connected to VCC_IO for power
supply, which means R4001, R4003, R4004, R4005 should be SMT with OR resistor.
Fig 9-2
If eMMC Flash is in use as shown in below Fig 9-3. Pull-up resistance on eMMC-DATA/CMD
should be 10K, VCC_FLASH is power supply, and eMMC-CLK don't need to be pulled up.
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