HD6417034B RENESAS [Renesas Technology Corp], HD6417034B Datasheet - Page 132
HD6417034B
Manufacturer Part Number
HD6417034B
Description
32-Bit RISC Microcomputer
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417034B.pdf
(687 pages)
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Section 8 Bus State Controller (BSC)
8.1.4
The BSC has ten registers (listed in table 8.2) which control space division, wait states, DRAM
interface, and parity check.
Table 8.2
Name
Bus control register
Wait state control register 1
Wait state control register 2
Wait state control register 3
DRAM area control register
Parity control register
Refresh control register
Refresh timer control/status
register
Refresh timer counter
Refresh time constant
register
Notes: 1. Only the values of bits A27–A24 and A8–A0 are valid; bits A23–A9 are ignored. For
Rev. 7.00 Jan 31, 2006 page 106 of 658
REJ09B0272-0700
2. Write only with word transfer instructions. See section 8.2.11, Notes on Register
Register Configuration
details on the register addresses, see section 8.3.5, Area Descriptions.
Access, for details on writing.
Register Configuration
Abbr.
BCR
WCR1
WCR2
WCR3
DCR
PCR
RCR
RTCSR
RTCNT
RTCOR
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'FFFF
H'FFFF
H'F800
H'0000
H'0000
H'0000
H'0000
H'0000
H'00FF
Address *
H'5FFFFA0
H'5FFFFA2
H'5FFFFA4
H'5FFFFA6
H'5FFFFA8
H'5FFFFAA
H'5FFFFAC
H'5FFFFAE
H'5FFFFB0
H'5FFFFB2
1
Bus width
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 *
2
2
2
2
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