simulation of DRAM in lab3greenspun.com : LUSENET : ece342 : One Thread
Hi I compiled my block I and II of the DRAM circuit, but when I simulate it using the simulator, it appears that I can't drive the I/O signal to hiZ. Why?
-- Ben (email@example.com), January 27, 1999
Make sure you read Robin's post about simulating tri-state busses.
Also keep in mind that you can't really drive a 'Z'. 'Z' means high-impedance state, which really means not driving. If a valid logic value is driven on the bus by a another party, it overpowers the 'Z'.
-- Steven Caranci (firstname.lastname@example.org), January 27, 1999.