Rainbow Electronics AT75C310 - Manual (Page 19)

AT75C310
19
SMC Chip Select Register
Register Name: SMC_CSR0..SMC_CSR3
• DBW: Data Bus Width
• WSE: Wait State Enable
• NWS: Number of Wait States
This field is valid only if WSE is set.
31 30 29 28 27 26 25 24
BA
23 22 21 20 19 18 17 16
BA – – – LCD
15 14 13 12 11 10 9 8
– – CSEN BAT TDF PAGES
7 6 5 4 3 2 1 0
PAGES – WSE NWS DBW
DBW Data Bus Width
0 0 Reserved
0 1 16-bit external bus
1 0 32-bit external bus
1 1 Reserved
NWS WSE Wait States
X X X 0 0
0 0 0 1 1
0 0 1 1 2
0 1 0 1 3
0 1 1 1 4
1 0 0 1 5
1 0 1 1 6
1 1 0 1 7
1 1 1 1 8