SH7065 Datasheet, PDF (246/941 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

Section 8 Bus State Controller (BSC)
8.1.4 Register Configuration
The BSC has the 18 registers shown in table 8.2. The functions of these registers include control
of direct interfaces to various types of memory, wait states, and refreshing.
Table 8.2 BSC Registers
Name
Bus control register
Area control register 1 (for area 0)
Area control register 1 (for area 1)
Area control register 1 (for area 2)
Area control register 1 (for area 3)
Area control register 1 (for area 4)
Area control register 1 (for area 5)
Wait control register (for area 0)
Wait control register (for area 1)
Wait control register (for area 2)
Wait control register (for area 3)
DRAM control register 1
DRAM control register 2
DRAM control register 3
Refresh timer control/status register
Refresh timer counter
Refresh time constant counter
Refresh count register
Abbre-
viation
BCR
ACR1_0
ACR1_1
ACR1_2
ACR1_3
ACR1_4
ACR1_5
WCR_0
WCR_1
WCR_2
WCR_3
DCR1
DCR2
DCR3
RTCSR
RTCNT
RTCOR
RFCR
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial
Value
H'0000
H'07FF
H'07FF
H'07FF
H'07FF
H'0000
H'0000
H'FFFE
H'FFFE
H'FFFE
H'FFFE
H'0000
H'1FE0
H'1800
H'0000
H'0000
H'0000
H'0000
Address
H'FFFF 0C00
H'FFFF 0C10
H'FFFF 0C12
H'FFFF 0C14
H'FFFF 0C16
H'FFFF 0C20
H'FFFF 0C22
H'FFFF 0C30
H'FFFF 0C32
H'FFFF 0C34
H'FFFF 0C36
H'FFFF 0C40
H'FFFF 0C42
H'FFFF 0C44
H'FFFF 0C68
H'FFFF 0C6A
H'FFFF 0C6C
H'FFFF 0C6E
Access
Size
8, 16, 32
8, 16, 32
8, 16, 32
8, 16, 32
8, 16, 32
8, 16, 32
8, 16, 32
8, 16, 32
8, 16, 32
8, 16, 32
8, 16, 32
8, 16, 32
8, 16, 32
8, 16, 32
8, 16, 32
8, 16, 32
8, 16, 32
8, 16, 32
Rev. 5.00 Sep 11, 2006 page 224 of 916
REJ09B0332-0500