6402 datasheet(236/250 Pages) INTEL

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Registers

236

Intel® 6400/6402 Advanced Memory Buffer Datasheet

14.8.2.12 SBIBISTMISC: SB Intel IBIST Initialization Miscellaneous Register

This register control southbound Intel IBIST Testing.

14.8.3

Northbound FBD Intel IBIST Registers

14.8.3.1

NBFIBPORTCTL: Northbound FBD Intel IBIST Port Control Register

This register controls the operation of the Intel IBIST logic.

Device:

NodeID

Function: 6

Offset:

B4h

Bit

Attr

Default

Description

31:

00h

Reserved

23:20

RWST

AMBID: Value of the AMB ID field during TS0

19:0

RWST

61a80h

SBIBISTCALPERIOD: Number of cycles to drive 1 during

Calibration

Device:

NodeID

Function: 6

Offset:

C0h

Bit

Attr

Default

Description

31:24

00h

Reserved

RWST

SBNBMAP: Loopback mapping bit

This bit will be sent during TS1 to specify to the slave which lanes needs to be

looped back. Actual lanes looped back is specified in the FBD Architecture Spec.

RWST

CMMSTR: Compliance Measurement Mode start

This puts the Intel IBIST logic in CMM mode and Intel IBIST TX engine will start

transmitting Intel IBIST patterns.

21:12

RWCST

000h

ERRCNT: Error Counter

Total number of frames with errors that were encountered by this port.

11:8

ROST

ERRLNNUM: Error Lane Number

This points to the first lane that encountered an error. If more than one lane

reports an error in a cycle, the most significant lane number that reported the

error will be logged.

7:6

RWCST

ERRSTAT: Port Error Status

When Intel IBIST is started, status goes to 01 until first start delimiter is

received and then goes to 00 until the end or to10 if an error occurs.

00: No error.

01: Did not receive first start delimiter.

10: Transmission error (first error).

11: Reserved

5RWST

AUTOINVSWPEN: Auto Inversion sweep enable

This bit enables the inversion shift register to continuously rotate the pattern in

the FIBTXSHFT and FIBRXSHFT registers.

0: Disable Auto-inversion

1: Enable Auto-inversions

4RWST

STOPONERR: Stop IBIST on Error

0: Do not stop on error, only update error counter

1: Stop on error

3RWST

LOOPCON: Loop forever

0: No looping

1: Loop forever

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