HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 178
HD6412320
Manufacturer Part Number
HD6412320
Description
Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6412320.pdf
(1302 pages)
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Section 6 Bus Controller
6.1.4
Table 6.2 summarizes the registers of the bus controller.
Table 6.2
Name
Bus width control register
Access state control register
Wait control register H
Wait control register L
Bus control register H
Bus control register L
Memory control register
DRAM control register
Refresh timer counter
Refresh time constant register
Notes: 1. Lower 16 bits of the address.
Rev.6.00 Sep. 27, 2007 Page 148 of 1268
REJ09B0220-0600
2. Determined by the MCU operating mode.
3. In the H8S/2321 this register is reserved and must not be accessed.
Register Configuration
Bus Controller Registers
Abbreviation
ABWCR
ASTCR
WCRH
WCRL
BCRH
BCRL
MCR *
DRAMCR *
RTCNT *
RTCOR *
3
3
3
3
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
Reset
H'FF/H'00 *
H'FF
H'FF
H'FF
H'D0
H'3C
H'00
H'00
H'00
H'FF
2
H'FED0
H'FED2
H'FED3
H'FED5
H'FED9
Address *
H'FED1
H'FED4
H'FED6
H'FED7
H'FED8
1
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