Datasheet

Datasheet 259
Direct Media Interface (DMI) RCRB
9 Direct Media Interface (DMI)
RCRB
This Root Complex Register Block (RCRB) controls the MCH-ICH9 serial interconnect.
The base address of this space is programmed in DMIBAR in D0:F0 configuration space.
Table 16 provides an address map of the DMI registers listed by address offset in
ascending order.
Note: IMPORTANT: All RCRB register space needs to remain organized as shown here.
Table 16. Direct Media Interface Register Address Map
Address
Offset
Register
Symbol
Register Name
Default
Value
Access
0–3h DMIVCECH
DMI Virtual Channel Enhanced
Capability
04010002h RO
4–7h DMIPVCCAP1 DMI Port VC Capability Register 1 00000001h RWO, RO
C–Dh DMIPVCCTL DMI Port VC Control 0000h RO, RW
10–13h DMIVC0RCAP DMI VC0 Resource Capability 00000001h RO
14–17h DMIVC0RCTL0 DMI VC0 Resource Control 800000FFh RO, RW
1A–1Bh DMIVC0RSTS DMI VC0 Resource Status 0002h RO
1C–1Fh DMIVC1RCAP DMI VC1 Resource Capability 00008001h RO
20–23h DMIVC1RCTL1 DMI VC1 Resource Control 01000000h RW, RO
26–27h DMIVC1RSTS DMI VC1 Resource Status 0002h RO
84–87h DMILCAP DMI Link Capabilities 00012C41h RO, RWO
88–89h DMILCTL DMI Link Control 0000h RW, RO
8A–8Bh DMILSTS DMI Link Status 0001h RO