r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 627
r8a77850anbg
Manufacturer Part Number
r8a77850anbg
Description
Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R8A77850ANBG.pdf
(1692 pages)
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(5)
See section 13.4.3 (2), Accessing PCI Memory Space.
Initial value:
Initial value:
Bit
31 to 20 LAR
19 to 0
PCI R/W:
PCI R/W:
SH R/W:
SH R/W:
PCI Local Address Register 1 (PCILAR1)
Bit:
Bit:
Bit Name
⎯
R/W
31
15
—
R
R
R
0
0
R/W
30
14
—
R
R
R
0
0
R/W
Initial
Value
H'000
All 0
29
13
—
R
R
R
0
0
R/W
28
12
—
R
R
R
0
0
R/W
PCI: R
SH: R
PCI: R
SH: R/W
R/W
27
11
—
R
R
R
0
0
R/W
26
10
—
R
R
R
0
0
LAR
Description
Local Address (12 bits)
These bits specify bits 31 to 20 for the start address of
the local address space 1 (this LSI internal bus
space).
As shown below, the valid bits of LAR change
depending on the local address space size specified
by the LSR bit in PCILSR1.
PCILSR1.LSR ([28:20]) = B'0 0000 0000: Bits [31:20] are valid.
PCILSR1.LSR ([28:20]) = B'0 0000 0001: Bits [31:21] are valid.
PCILSR1.LSR ([28:20]) = B'0 0000 0011: Bits [31:22] are valid.
PCILSR1.LSR ([28:20]) = B'0 0000 0111: Bits [31:23] are valid.
PCILSR1.LSR ([28:20]) = B'0 0000 1111: Bits [31:24] are valid.
PCILSR1.LSR ([28:20]) = B'0 0001 1111: Bits [31:25] are valid.
PCILSR1.LSR ([28:20]) = B'0 0011 1111: Bits [31:26] are valid.
PCILSR1.LSR ([28:20]) = B'0 0111 1111: Bits [31:27] are valid.
PCILSR1.LSR ([28:20]) = B'0 1111 1111: Bits [31:28] are valid.
PCILSR1.LSR ([28:20]) = B'1 1111 1111: Bits [31:29] are valid.
Reserved
These bits are always read as 0. The write value
should always be 0.
R/W
25
—
R
R
R
0
9
0
R/W
24
—
R
R
R
0
8
0
R/W
23
—
R
R
R
0
7
0
Rev.1.00 Jan. 10, 2008 Page 597 of 1658
R/W
22
—
R
R
R
0
6
0
R/W
21
—
R
R
R
0
5
0
R/W
20
—
R
R
R
0
4
0
13. PCI Controller (PCIC)
19
—
—
R
R
R
R
0
3
0
REJ09B0261-0100
18
—
—
R
R
R
R
0
2
0
17
—
—
R
R
R
R
0
1
0
16
—
—
R
R
R
R
0
0
0
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