HPM6E80 + 50 Mhz parallel bus read (slave mode)

[sadkotheguest]

Could you tell - is it possible to read the data from a parallel bus (8 bit, synchronous clock) with HPM6E80 MCU in slave mode?
Maximum CLK frequency is 50 MHz.
What kind of solution should I choose:

1. Set CLK_IN to GPTIM & make DMA transaction with positive edge of data clock to get data from GPIO register?
2. Use passive parallel bus (if it is possible)?

[chenzhihong007]

Please show the timing waveform picture. Do you need an address lines? CLK is 50MHz, parallel data should be update in 50MHz？