Design a microprocessor system with the following specs: a. Z80 CPU (20 MHz clock) b. 32 KB SARM (150 ns access time) c.
Posted: Tue Jun 07, 2022 11:25 am
Design a microprocessor system with the following specs:
a. Z80 CPU (20 MHz clock)
b. 32 KB SARM (150 ns access time)
c. 32 KB EPROM (180 ns access time)
d. 8-bit TTL I/P port and 8-bit TTL O/P port, both using the same
address 00
e. Minimal decoding logic
f. Schmitt trigger inverter based Reset & Clock circuits
running at full speed
g. A non-maskable interrupt at a rate of 50 times per second to
carry out routine checks (it does
not have to be very accurate; 1 or 2 less or more per seconds is
fine). Do not use counters or
timers.
h. Make sure timing is proper and use wait cycles if necessary
a. Z80 CPU (20 MHz clock)
b. 32 KB SARM (150 ns access time)
c. 32 KB EPROM (180 ns access time)
d. 8-bit TTL I/P port and 8-bit TTL O/P port, both using the same
address 00
e. Minimal decoding logic
f. Schmitt trigger inverter based Reset & Clock circuits
running at full speed
g. A non-maskable interrupt at a rate of 50 times per second to
carry out routine checks (it does
not have to be very accurate; 1 or 2 less or more per seconds is
fine). Do not use counters or
timers.
h. Make sure timing is proper and use wait cycles if necessary