r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 602

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

13. PCI Controller (PCIC)
(10) PCI Latency Timer Register (PCILTM)
(11) PCI Header Type Register (PCIHDR)
Rev.1.00 Jan. 10, 2008 Page 572 of 1658
REJ09B0261-0100
Bit
7 to 0
Bit
7
6 to 0
Bit Name
LTM
Bit Name
MFE
HDR
Initial value:
Initial value:
Initial
Value
H'00
Initial
Value
0
H'00
PCI R/W:
PCI R/W:
SH R/W:
SH R/W:
Bit:
Bit:
R/W
SH: R/W
PCI: R/W
R/W
SH: R
PCI: R
SH: R
PCI: R
R/W
R/W
MFE
R
R
7
0
7
0
R/W
R/W
R
R
6
0
6
0
Description
Latency Timer Register
These bits specify the maximum time that the PCI bus
is occupied with the clock cycle when the PCIC is a
master.
Description
Multiple Function Enable (HEAD7)
Indicates whether the device is multi-function or
single-function
0: Single function device
1: The device has two to eight multifunction devices
Configuration Layout Type (HEAD6 to HEAD0)
These bits indicate the layout type of configuration
registers.
H'00: Type 00h layout supported
H'01: Type 01h layout supported (not supported)
R/W
R/W
R
R
5
0
5
0
(not supported)
R/W
R/W
R
R
4
0
4
0
LTM
HDR
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