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Section 6 Bus Controller (BSC)
Table 6.7
Bit Settings and Bus Specifications of Basic Bus Interface
IOSE
CS256E
1
0
1
0
0
1
Table 6.8
Bus Specifications for IOS Extended Area/Multiplex Bus Interface (Address
Cycle)
AST
WMS1
Table 6.9
Bus Specifications for IOS Extended Area/Multiplex Bus Interface (Data Cycle)
AST
WMS1
0
—
1
0
Other than WMS1 = 0 and
WMS0 = 1
Rev. 1.00 Mar. 12, 2008 Page 122 of 1178
REJ09B0403-0100
IOS Extended Area
ABW, AST, WMS1, WMS0,
WC1, WC0
WMS0
WC22
0
1
WMS0
WC1
—
—
1
—
0
1
Area
256-Kbyte Extended Area
ABW256, AST256, WMS10,
WC11, WC10
ABW256, AST256, WMS10,
WC11, WC10
WC1
WC0
WC0
—
—
0
1
0
1
Number of
Number of
Access
Program
States
Wait States
2
0
1
Number of
Number of
Access
Program
States
Wait States
2
0
3
0
3
0
1
2
3
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