Elnegm
Member level 1
I want to ensure some knowladge i gained about 8051
first program counter is 15 bit so if pc less than 4096 we read from internal ROM but if pc larger than 4096 so PSEN is asserted high and we read from external ROM , and if in the program we asserted PSEN so we read from external ROM even if address less than 4096
Is that right???
Thanks in advance
first program counter is 15 bit so if pc less than 4096 we read from internal ROM but if pc larger than 4096 so PSEN is asserted high and we read from external ROM , and if in the program we asserted PSEN so we read from external ROM even if address less than 4096
Is that right???
Thanks in advance