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Aip control one (aipcntl1), Register: 0xbf – Avago Technologies LSI53C1010R User Manual

Page 232

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4-114

Registers

Version 2.2

Copyright © 2000–2003 by LSI Logic Corporation. All rights reserved.

PARITYERR

Parity Error Status

0

This bit represents the error status for the parity error.
This bit is set upon a parity error and clears when the
interrupt clears.

Register: 0xBF

AIP Control One (AIPCNTL1)
Read/Write

R

Reserved

[7:4]

DISAIP

Disable AIP Code Generation

3

When set, this bit disables AIP code generation on the
SCSI bus. By default, AIP codes are generated on the
SCSI bus during all asynchronous transfers.

RAIPERR

Reset AIP Error

2

This bit allows an AIP error condition to be reset
manually. Setting this bit clears the AIP error status in
bit 1 of

AIP Control Zero (AIPCNTL0)

. Setting this bit

does not clear the live AIP error status in bit 0 of

AIP Control Zero (AIPCNTL0)

. The RAIPERR bit is not

self-clearing. It must be written back to zero.

FBAIP

Force Bad AIP Value

1

When set, this bit causes bad AIP values to be sent over
the SCSI bus.

RSQ

Reset AIP Sequence Value

0

When set, this bit causes the sequence value used in the
calculation of the protection code to be reset.

7

4

3

2

1

0

R

DISAIP

RAIPERR

FBAIP

RSQ

0

0

0

0

0

0

0

0