HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 184

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 6 Bus Controller
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
Note: * This bit is reserved in the H8S/2321.
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 reset and in hardware standby mode. It is not initialized in
software standby mode.
Rev.6.00 Sep. 27, 2007 Page 154 of 1268
REJ09B0220-0600
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 BRSTS1 BRSTS0 RMTS2 * RMTS1 * RMTS0 *
R/W
5
0
R/W
4
1
R/W
3
0
R/W
2
0
R/W
1
0
(Initial value)
(Initial value)
R/W
0
0