M-gCREATEDLong words are divided into 4 bytes called Byte 0, Byte 1, Byte 2, and Byte 3 for storage in memory. Notice that the RAS and CAS parts of the address are applied over lines MAq through MA8 to address inputs Ao-A8 of all DRAMs. ... is used to produce chip enable signals for program memory, data memory, and the I/O devices. ... The logic level of address strobe (ADS) determines when the row address and column address is output on multiplexed address lines MAq through MAg.
|Title||:||The 68000 and 68020 Microprocessors|
|Author||:||Walter A. Triebel, Avtar Singh|
|Publisher||:||Pearson College Division - 1991|