IDT 89HPES24N3A, User Manual

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IDT Configuration Registers
PES24N3A User Manual 9 - 36 April 10, 2008
Notes
MSIMDATA - Message Signaled Interrupt Message Data (0x0DC)
Subsystem ID and Subsystem Vendor ID
SSIDSSVIDCAP - Subsystem ID and Subsystem Vendor ID Capability (0x0F0)
SSIDSSVID - Subsystem ID and Subsystem Vendor ID (0x0F4)
Extended Configuration Space Access Registers
ECFGADDR - Extended Configuration Space Access Address (0x0F8)
Bit
Field
Field
Name
Type
Default
Value
Description
15:0 MDATA RW 0x0 Message Data . This field contains the lower 16-bits of data
that are written when a MSI is signalled.
31:16 Reserved RO 0x0 Reserved field.
Bit
Field
Field
Name
Type
Default
Value
Description
7:0 CAPID RO 0xD Capability ID . The value of 0xD identifies this capability as
a SSID/SSVID capability structure.
15:8 NXTPTR RWL 0x00 Next Pointer . This field contains a pointer to the next capa-
bility structure.
31:16 Reserved RO 0x0 Reserved field.
Bit
Field
Field
Name
Type
Default
Value
Description
15:0 SSVID RWL 0x0 SubSystem Vendor ID . This field identifies the manufac-
turer of the add-in card or subsystem.
SSVID values are assigned by the PCI-SIG to insure
uniqueness.
31:16 SSID RWL 0x0 Subsystem ID . This field identifies the add-in card or sub-
system.
SSID values are assigned by the vendor.
Bit
Field
Field
Name
Type
Default
Value
Description
1:0 Reserved RO 0x0 Reserved field.
7:2 REG RW 0x0 Register Number. This field selects the configuration regis-
ter number as defined by Section 7.2.2 of the PCI Express
Base Specification, Rev. 1.1
11:8 EREG RW 0x0 Extended Register Number. This field selects the
extended configuration register number as defined by Sec-
tion 7.2.2 of the PCI Express Base Specification, Rev. 1.1
31:12 Reserved RO 0x0 Reserved field.