HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 158

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

Bits 3 and 2—Area 1 Wait Control 1 and 0 (W11, W10): These bits select the number of
program wait states when area 1 in external space is accessed while the AST1 bit in ASTCR is set
to 1.
Bit 3
W11
0
1
Bits 1 and 0—Area 0 Wait Control 1 and 0 (W01, W00): These bits select the number of
program wait states when area 0 in external space is accessed while the AST0 bit in ASTCR is set
to 1.
Bit 1
W01
0
1
6.2.4
BCRH is an 8-bit readable/writable register that selects enabling or disabling of idle cycle
insertion, and the memory interface for areas 2 to 5 and area 0.
BCRH is initialized to H'D0 by a power-on reset and in hardware standby mode. It is not
initialized by a manual reset or in software standby mode.
Bit
Initial value
R/W
Bus Control Register H (BCRH)
Bit 2
W10
0
1
0
1
Bit 0
W00
0
1
0
1
:
:
:
ICIS1
R/W
7
1
Description
Program wait not inserted when external space area 1 is accessed
1 program wait state inserted when external space area 1 is accessed
2 program wait states inserted when external space area 1 is accessed
3 program wait states inserted when external space area 1 is accessed
Description
Program wait not inserted when external space area 0 is accessed
1 program wait state inserted when external space area 0 is accessed
2 program wait states inserted when external space area 0 is accessed
3 program wait states inserted when external space area 0 is accessed
ICIS0
R/W
6
1
BRSTRM
R/W
5
0
BRSTS1
R/W
4
1
BRSTS0
R/W
3
0
R/W
—
2
0
R/W
—
1
0
(Initial value)
(Initial value)
R/W
—
0
0
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