r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 538

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

Section 13 PCI Controller (PCIC)
(13) PCI I/O Base Address Register (PCIIBAR)
This register packages the I/O space base address register of the PCI configuration register that is
prescribed with PCI local bus specification.
Refer to Section 13.4.4 (1), Accessing This LSI Address Space.
Rev. 1.00 Oct. 01, 2007 Page 472 of 1956
REJ09B0256-0100
Initial value:
Initial value:
Bit
31 to 8
7 to 2
1
0
PCI R/W:
PCI R/W:
SH R/W:
SH R/W:
Bit:
Bit:
Bit Name
IOB
(upper)
IOB
(lower)

ASI
R/W
R/W
R/W
R/W
31
15
0
0
R/W
R/W
R/W
R/W
30
14
0
0
R/W
R/W
R/W
R/W
Initial
Value
H'000000 SH: R/W
000000
0
1
29
13
0
0
IOB (upper)
R/W
R/W
R/W
R/W
28
12
0
0
R/W
R/W
R/W
R/W
R/W
PCI: R/W
SH: R
PCI: R
SH: R
PCI: R
SH: R
PCI: R
27
11
0
0
R/W
R/W
R/W
R/W
26
10
0
0
R/W
R/W
R/W
R/W
25
Description
I/O Space Base Address (upper 24 bits)
Specifies the upper 24 bits of I/O base address that
corresponds the PCIC local register space (PCIC
control register space).
I/O Space Base Address (lower 6 bits)
These bits are fixed 000000 by hardware.
Reserved
These bits are always read as 0. The write value
should always be 0.
Address Space Indicator
Indicates whether the base address in this register
indicates the I/O or memory space.
0: Memory space
1: I/O space
0
9
0
IOB (upper)
R/W
R/W
R/W
R/W
24
0
8
0
R/W
R/W
23
R
R
0
7
0
R/W
R/W
22
R
R
0
6
0
R/W
R/W
IOB (lower)
21
R
R
0
5
0
R/W
R/W
20
R
R
0
4
0
R/W
R/W
19
R
R
0
3
0
R/W
R/W
18
R
R
0
2
0
R/W
R/W
17

R
R
0
1
0
R/W
R/W
ASI
16
R
R
0
0
1