r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 545

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

(22) PCI Maximum Latency Register (PCIMAXLAT)
This register is not programmable.
(23) PCI Capability Identifier Register (PCICID)
When H'01 is read by system software, it indicates that the data structure currently being pointed
to is the PCI power management data structure. Each function of a PCI device may have only one
item in its capability list with PCICID set to H'01.
Bit
7 to 0
Bit
7 to 0
Bit Name
MAXLAT
Bit Name
CID
Initial value:
Initial value:
Initial
Value
H'00
Initial
Value
H'01
PCI R/W:
PCI R/W:
SH R/W:
SH R/W:
Bit:
Bit:
R/W
SH: R
PCI: R
R/W
SH: R
PCI: R
R
R
R
R
7
0
7
0
R
R
R
R
6
0
6
0
Description
Maximum Latency
Specify the worst time from the bus request by the
PCI master device to the bus acquisition (not
supported).
Description
Expansion Function ID
Specifies the expansion function ID.
H'01: The expansion function is power management.
R
R
R
R
5
0
5
0
MAXLAT
R
R
R
R
4
0
4
0
CID
R
R
R
R
3
0
3
0
Rev. 1.00 Oct. 01, 2007 Page 479 of 1956
R
R
R
R
2
0
2
0
R
R
R
R
1
0
1
0
Section 13 PCI Controller (PCIC)
R
R
R
R
0
0
0
1
REJ09B0256-0100