User Manual

AT75C220
20
• NWS: Number of Wait States
This field is valid only if WSE is set.
• WSE: Wait State Enable
• MWS: Multiply Wait States
See Table 9, where
• PAGES: Page Size
• TDF: Data Float Output Time
• BAT: Byte Access Mode
0 = Byte Write Mode
1 = Byte Select Mode
Table 9. NWS, WSE Values
NWS WSE Wait States
XX X 0 0
0001 1
0011 2
0101 3
0111 4
1001 5
1011 6
1101 7
1111 8
PAGES Page Size
Base
Address
0 0 1M byte BA[31 - 20]
0 1 4M bytes BA[31 - 22]
1 0 16M bytes BA[31 - 24]
11 Reserved –
TDF Cycles after Transfer
00 0 0
00 1 1
01 0 2
01 1 3
10 0 4
10 1 5
11 0 6
11 1 7
WS NWS 1+()81+×=