Datasheet

Rev. 3.00, 03/04, page 120 of 830
Table 6.8 Bit Settings and Bus Specifications of Basic Bus Interface
Area
IOSE CS256E CPCSE
IOS Extended
Area
256-kbyte
Extended Area CP Extended Area
0  1 0
1

ABWCP, ASTCP,
WMS21, WMS20, WC21,
WC20
0 1
1
ABW, AST, WMS1,
WMS0, WC1, WC0
ABW256, AST256,
WMS10, WC11,
WC10
Same as when CS256E
= 0
0   0 0
1 ABWCP, ASTCP,
WMS21, WMS20, WC21,
WC20
0 1
1

ABW256, AST256,
WMS10, WC11,
WC10
Same as when CS256E
= 0
Table 6.9 Bus Specifications for IOS Extended Area/Multiplex Bus Interface (Address
Cycle)
AST WMS1 WMS0
WC22
WC1 WC0
Number of
Access
States
Number of
Program
Wait States
0   0
  
1  
2
1
Table 6.10 Bus Specifications for IOS Extended Area/Multiplex Bus Interface (Data Cycle)
AST WMS1 WMS0 WC1 WC0
Number of
Access
States
Number of
Program
Wait States
0 — — — — 2 0
0 1 — — 3 0
0 3 0 0
1 1
0 2
1
Other than WMS1 = 0 and
WMS0 = 1
1
1 3