I'm looking into the details of a new HW design and I am planning on using the Flexbus in 8 bit multiplexed mode to connect to an FPGA.
I have no need to connect any more than the 8 multiplexed bits and support strobes and clock to the FPGA.
Are there any issues of not enabling the flexbus mode of the other 24 AD IOs?
I would like to use those IO for other purposes.
I see that you want to use FlexBus of K60 to read/write FPGA, how many bytes do you want to access FPGA? it is related to the address pins you have to connected.
I think you have to connect the FB_AD[7:0](assume the byte size you access is less than 256), CLKOUT pin and FB_ALE, you can design a flip-flop to latch the low address lines, connect the FB_OE, FB_CSx and FB_RW signal so that you can read/write the FPGA.
In conclusion, pls connect FB_AD[7:0],CLKOUT, FB_ALE,FB_OE, FB_CSx and FB_RW.
Hope it can help you