JG82855GME S L7VN Intel, JG82855GME S L7VN Datasheet - Page 106

• Manufacturer Part Number: JG82855GME S L7VN
• Manufacturer: Intel

Specifications of JG82855GME S L7VN

• Package Type: FCBGA
• Rad Hardened: No
• Lead Free Status / Rohs Status: Compliant

106
Register Description
4.10.1
4.10.2
4.10.3
VID – Vendor Identification Register
The VID Register contains the vendor identification number. This 16-bit register combined with
the Device Identification register uniquely identifies any PCI device. Writes to this register have
no effect.
DID – Device Identification Register
Address Offset:
Default Value:
Access:
Size:
This 16-bit register combined with the Vendor Identification register uniquely identifies any PCI
device. Writes to this register have no effect.
PCICMD – PCI Command Register
Address Offset:
Default Value:
Access:
Size:
Since Intel 855GM/GME GMCH Device #0 does not physically reside on PCI_A many of the bits
are not implemented.
15:0
15:0
15:10
9
8
7
6
5
Bit
Bit
Bit
Device Identification Number (DID): This is a 16-bit value assigned to the Intel 855GM/GME GMCH
Host-HI Bridge Function #3 (3585h).
Reserved
Fast Back-to-Back Enable (FB2B): This bit controls whether or not the master can do fast back-to-
back Write. Since Device #0 is strictly a target, this bit is not implemented and is hardwired to 0. Writes
to this bit position have no effect.
SERR Enable (SERRE): SERR# is not implemented by Function #1 of Device #0 of the GMCH and this
bit is hardwired to 0. Writes to this bit position have no effect.
Address/Data Stepping Enable (ADSTEP): Address/data stepping is not implemented in the GMCH,
and this bit is hardwired to 0. Writes to this bit position have no effect.
Parity Error Enable (PERRE): PERR# is not implemented by GMCH and this bit is hardwired to 0.
Writes to this bit position have no effect.
VGA Palette Snoop Enable (VGASNOOP): The GMCH does not implement this bit and it is hardwired
to a 0. Writes to this bit position have no effect.
Vendor Identification (VID): This register field contains the PCI standard identification for 8086h.
02-03h
3585h
Read Only
16 bits
04-05h
0006h
Read Only, Read/Write
16 bits
Description
Description
Description
Datasheet
R