Register Configuration - Renesas H8/3067 Series User Manual

6.1.4

Register Configuration

Table 6.2 summarizes the bus controller's registers.
Table 6.2 Bus Controller Registers
Address *
1
Name
H'EE020 Bus width control register
H'EE021 Access state control register
H'EE022 Wait control register H
H'EE023 Wait control register L
H'EE013 Bus release control register
H'EE01F Chip select control register
Address control register *
H'EE01E
H'EE024 Bus control register
H'EE026 DRAM control register A
H'EE027 DRAM control register B
H'EE028 Refresh timer control/status register
H'EE029 Refresh timer counter
H'EE02A Refresh time constant register
Notes: 1. Lower 20 bits of the address in advanced mode.
2. In modes 2 and 4, the initial value is H'00.
3. In modes 3 and 4, the initial value is H'EE.
4. This register is provided only in the flash memory R version and mask ROM versions.
5. For Bit 7, only 0 can be written to clear the flag.
Abbreviation
ABWCR
ASTCR
WCRH
WCRL
BRCR
CSCR
4
ADRCR
BCR
DRCRA
DRCRB
RTMCSR
RTCNT
RTCOR
Rev. 4.00 Jan 26, 2006 page 123 of 938
Section 6 Bus Controller
R/W Initial Value
H'FF *
2
R/W
R/W H'FF
R/W H'FF
R/W H'FF
H'FE *
3
R/W
R/W H'0F
R/W H'FF
R/W H'C6
R/W H'10
R/W H'08
R(W) *
5
H'07
R/W H'00
R/W H'FF
REJ09B0276-0400