r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 536

• 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)
(9)
(10) PCI Latency Timer Register (PCILTM)
This register specifies, in units of PCI bus clocks, the value of latency timer for this PCI bus
master.
Rev. 1.00 Oct. 01, 2007 Page 470 of 1956
REJ09B0256-0100
Bit
7 to 0
Bit
7 to 0
PCI Cacheline Size Register (PCICLS)
Bit Name
CLS
Bit Name
LTM
Initial value:
Initial value:
Initial
Value
H'20
Initial
Value
H'00
PCI R/W:
PCI R/W:
SH R/W:
SH R/W:
Bit:
Bit:
R/W
SH: R
PCI: R
R/W
SH: R/W
PCI: R/W
R/W
R/W
R
R
7
0
7
0
R/W
R/W
R
R
6
0
6
0
Description
Cache Line Size: Not supported
A memory target does not support a cache. SDON
and SBO are ignored.
Description
PCI Latency Timer
Specifies the maximum number of acquisition clocks
of PCI bus when the PCIC is operating as the master.
R/W
R/W
R
R
5
1
5
0
R/W
R/W
R
R
4
0
4
0
LTM
CLS
R/W
R/W
R
R
3
0
3
0
R/W
R/W
R
R
2
0
2
0
R/W
R/W
R
R
1
0
1
0
R/W
R/W
R
R
0
0
0
0