Rainbow Electronics AT75C220 - Manual (Page 21)

AT75C220
21
• CSEN: Chip Select Enable
Active high.
• LCD: LCD Mode Enable
Active high. SMC_CSR3 only.
• BA: Base Address
This field contains the high-order bits of the base address. If the page size is larger than 1M byte, then the unused bits
of the base address are ignored by the SMC decoder.
SMC Memory Control Register
Register Name:SMC_MCR
• DRP: Data Read Protocol
0 = Standard Read Mode
1 = Early Read Mode
31 30 29 28 27 26 25 24
– – – – – – – –
23 22 21 20 19 18 17 16
– – – – – – – –
15 14 13 12 11 10 9 8
– – – – – – – –
7 6 5 4 3 2 1 0
– – – DRP – – – –