Hello everybody!

Take example of 89C52 for this question.

I was going through the Philips FAM documents (as prescribed by Mr. Erik). I just want to confirm two things, and ask a question.

My understanding is that you can connect external code and data memory up to 64K.

When EA is tied high, then both internal AND external code memories are available, lower 8K bytes being on-chip. Above this 8K (range 0x0-0x1fff), external memory is accessed. When the Program counter points to the first location of external memory, WHAT address is output on the address lines? is it 0x0 ? or is it 0x2000 ?

Same question is for the external data memory. After 256 bytes (first 256 bytes accessed on-chip), the external data memory is accessed. What address would be output for the first address of external data memory? is it 0x0 or is it 0x100 ?

Regards
Aman