Shadowed scsi sge status 0, Register: 0x42, Register: 0x43 – Avago Technologies LSI53C1000R User Manual
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Registers
Version 2.2
Copyright © 2000–2003 by LSI Logic Corporation. All rights reserved.
Register: 0x42
Shadowed SCSI SGE Status 0
Read/Write
This register contains the individual status bits that cause an SGE SCSI
interrupt. These bits correspond to the SGE conditions described in the
SIST0 register description. Unlike the other registers in the device, these
bits must be set to one to clear the condition. This register is shadowed
behind the
SCSI Interrupt Status Zero (SIST0)
register. It can be
accessed by setting bit 7, the Enable Shadowed SGE Register (ShSGE)
bit, in the
register.
SRP
SCRIPTS RAM Parity
7
DFP
DMA FIFO Parity
6
RD
Residual Data in SCSI FIFO
5
PCO
Phase Change with outstanding Offset
4
OO
Offset Overflow
3
OU
Offset Underflow
2
DO
Data Overflow
1
DU
Data Underflow
0
Register: 0x43
Shadowed SCSI Interrupt Status One (SIST1)
Read Only
This register contains the individual status bits which cause an
SGE SCSI interrupt. These bits correspond to the SGE conditions
described in the SIST0 register description. Unlike the other registers in
the device, these bits must be set to one to clear the condition. This
7
6
5
4
3
2
1
0
SRP
DFP
RD
PCO
OO
OU
DO
DU
0
0
0
0
0
0
0
0
7
6
5
4
3
2
1
0
R
PNCRC
FCRC
DTST
NFCRC
MCRC
R
0
0
0
0
0
0
0
0