SH7785 Datasheet, PDF (602/1692 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

13. PCI Controller (PCIC)
(10) PCI Latency Timer Register (PCILTM)
Bit: 7
6
5
4
3
2
1
0
LTM
Initial value: 0
0
0
0
0
0
0
0
SH R/W: R/W R/W R/W R/W R/W R/W R/W R/W
PCI R/W: R/W R/W R/W R/W R/W R/W R/W R/W
Bit
7 to 0
Bit Name
LTM
Initial
Value
H'00
R/W
SH: R/W
PCI: R/W
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.
(11) PCI Header Type Register (PCIHDR)
Bit: 7
6
5
4
3
2
1
0
MFE
HDR
Initial value: 0
0
0
0
0
0
0
0
SH R/W: R R R R R R R R
PCI R/W: R R R R R R R R
Initial
Bit
Bit Name Value R/W
7
MFE
0
SH: R
PCI: R
6 to 0 HDR
H'00
SH: R
PCI: R
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
(not supported)
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)
Rev.1.00 Jan. 10, 2008 Page 572 of 1658
REJ09B0261-0100