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Rev. 1.00, 05/04, page 93 of 544
Section 6 Bus Controller (BSC)
Since this LSI does not have an externally extended function, it does not have an on-chip bus
controller (BSC). Considering the software compatibility with similar products, you must be
careful to set appropriate values to the control registers for the bus controller.
6.1 Register Descriptions
The bus controller has the following registers.
• Bus control register (BCR)
• Wait state control register (WSCR)
6.1.1 Bus Control Register (BCR)
Bit Bit Name
Initial
Value R/W Description
7 — 1 R/W Reserved
The initial value should not be changed.
6 ICIS0 1 R/W Idle Cycle Insertion
The initial value should not be changed.
5 BRSTRM 0 R/W Burst ROM Enable
The initial value should not be changed.
4 BRSTS1 1 R/W Burst Cycle Select 1
The initial value should not be changed.
3 BRSTS0 0 R/W Burst Cycle Select 0
The initial value should not be changed.
2 0 R/W Reserved
The initial value should not be changed.
1
0
IOS1
IOS0
1
1
R/W
R/W
IOS Select 1, 0
The initial value should not be changed.