r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 588
r5s77631ay266bgv
Manufacturer Part Number
r5s77631ay266bgv
Description
Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5S77631AY266BGV.pdf
(2026 pages)
- Current page: 588 of 2026
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Section 13 PCI Controller (PCIC)
(25) PCI Cache Snoop Control Register 1 (PCICSCR1)
An external device can access local memory of this LSI via the PCIC. When an external PCI
device accesses cacheable areas of this LSI, the PCIC can support cache snoop function to the on-
chip caches. The PCICSCR1 specifies this function that uses cache snoop address registers 1.
Refer to section 13.4.4 (7), Cache Coherency.
Rev. 1.00 Oct. 01, 2007 Page 522 of 1956
REJ09B0256-0100
Initial value:
Initial value:
Bit
31 to 5
4 to 2
PCI R/W:
PCI R/W:
SH R/W:
SH R/W:
Bit:
Bit:
Bit Name
RANGE
31
15
—
—
—
—
R
R
0
0
30
14
—
—
—
—
R
R
0
0
Initial
Value
All 0
All 0
29
13
—
—
—
—
R
R
0
0
28
12
—
—
—
—
R
R
0
0
R/W
SH: R
PCI: —
SH: R/W
PCI: —
27
—
—
11
—
—
R
R
0
0
26
10
—
—
—
—
R
R
0
0
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
Address Range to be Compared
Specify the address range of PCICSAR1 to be
compared.
000: PCICSAR[n].CADR[31:12] compared (4 Kbytes)
001: PCICSAR[n].CADR[31:16] compared (64 Kbytes)
010: PCICSAR[n].CADR[31:20] compared (1 Mbyte)
011: PCICSAR[n].CADR[31:24] compared (16 Mbytes)
100: PCICSAR[n].CADR[31:25] compared (32 Mbytes)
101: PCICSAR[n].CADR[31:26] compared (64 Mbytes)
110: PCICSAR[n].CADR[31:27] compared (128 Mbytes)
111: PCICSAR[n].CADR[31:28] compared (256 Mbytes)
Valid only when PCICSCR1.SNPMD = 10 or 11.
25
—
—
—
—
R
R
9
0
0
24
—
—
—
—
R
R
0
8
0
23
—
—
—
—
R
R
0
7
0
22
—
—
—
—
R
R
0
6
0
21
—
—
—
—
R
R
0
5
0
R/W
20
—
—
—
R
0
4
0
RANGE
R/W
19
—
—
—
R
0
3
0
R/W
18
—
—
—
R
0
2
0
R/W
17
—
—
—
R
1
0
SNPMD
0
R/W
16
—
—
—
R
0
0
0
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