Registers
14.3.1.17 RECALDUR: FBD Recalibrate Duration
This register determines the duration of the Recalibration state between 32 and 42
frames. During recalibration state all commands and CRC are ignored.
Device:
Function: 1
Offset: 70h
NodeID
Bit
Attr
Default
Description
7
RV
0
Reserved
6:1
RW
0h
Recalibrate_Duration: This field sets the duration of the Recalibrate
state once a sync command with the ERC bit. set is received. Legal
values are between 32 and 42. Functionality if set outside this
range is undefined.
•
•
•
•
•
> ‘42d (101010b) = undefined
= ‘42d (101010b) = ignore for 42 frames after Sync
....
= 32d (100000b) = ignore for 32 frames after Sync
<32d (100000b) = undefined
0
RV
0
Reserved
14.3.1.18 SYNCTRAININT: SYNC Train Interval register
This register sets the typical spacing of sync commands on the link.
Device:
NodeID
Function: 1
Offset:
78h
Bit
Attr
Default
Description
7:0
RWST
2Ah
SyncTrainInt: This field sets the min spacing for sync cmds
default value 42d (101010b)
min value 32, max value=255
14.3.1.19 SBCALSTATUS: Southbound Calibration Status
This register contains the pass/fail information of the last calibration on a per lane basis
for the southbound. The AMB is expected to log the information when it is asked to go
through calibration. The register is always cleared when entering the calibration state.
This register will be used for debug purposes.
Device:
NodeID
Function: 1
Offset:
Bit
7Ch
Attr
Default
Description
15:10
9:0
RV
0h
0h
Reserved
RWST
CALSTATUS: Calibration status
0 - Pass
1 - Fail
Intel® 6400/6402 Advanced Memory Buffer Datasheet
179
INTEL [ INTEL ]
