r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 549

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

(26) PCI Power Management Control/Status Register (PCIPMCSR)
This 16-bit register is used to manage the PCI function's power management status as well as to
enable/monitor PMEs. For details, refer to “PCI Bus Power Management Interface Specification
Revision 1.1 Chapter 3 PCI Power Management Interface”.
Initial value:
Bit
15
14, 13
12 to 9
8
7 to 2
1, 0
PCI R/W:
SH R/W:
Bit:
Bit Name
PMES
DSC
DSL
PMEEN

PS
PMES
15
R
R
0
14
R
R
0
DSC
13
Initial
Value
0
00
0000
0
All 0
00
R
R
0
12
R
R
0
R/W
SH: R
PCI: R
SH: R
PCI: R
SH: R
PCI: R
SH: R
PCI: R
SH: R
PCI: R
SH: R/W
PCI: R/W
11
R
R
0
DSL
10
R
R
0
Description
PME Status
Indicates the state of the PME signal.
(Not supported)
Note: This LSI dose not have the PME pin.
Data Scale
Specify the scaling of data field. (Not supported)
Data Select
Specify the data output in the data filed.
PME Enable
Controls the PME output. (Not supported)
Note: This LSI dose not have the PME pin.
Reserved
These bits are always read as 0. The write value
should always be 0.
Power State
Specifies the power state.
If software attempts to write an unsupported, optional
state to these bits, the write operation must complete
normally on the bus; however, the data is discarded
and no state change occurs.
00: D0 state
01: D1 state
10: D2 state
11: D3 hot state (power-down mode)
R
R
9
0
PME
EN
R
R
8
0

R
R
7
0
Rev. 1.00 Oct. 01, 2007 Page 483 of 1956

R
R
6
0

R
R
5
0
Section 13 PCI Controller (PCIC)

R
R
4
0

R
R
3
0
REJ09B0256-0100

R
R
2
0
R/W
R
1
0
PS
R/W
R
0
0