Avago Technologies LSI53C896 - Manual (Page 106)

3-18 Signal Descriptions
Version 3.3 Copyright © 1998–2003 by LSI Logic Corporation. All rights reserved.
Table 3.14 describes the SCSI Function B_SCRTL Signals group.
Table 3.14 SCSI Function B_SCRTL Signals
Name Bump Type Strength Description
B_SC_D
−
B_SD_D+
B_SI_O
−
B_SI_O+
B_SMSG
−
B_SMSG+
B_SREQ
−
B_SREQ+
B_SREQ2
−
B_SREQ2+
B_SACK
−
B_SACK+
B_SACK2
−
B_SACK2+
B_SBSY
−
B_SBSY+
B_SATN
−
B_SATN+
B_SRST
−
B_SRST+
B_SSEL
−
B_SSEL+
T20
T21
V22
V20
R20
R21
U21
V23
U23
U22
N20
P21
P23
P22
N23
N21
M23
N22
R23
R22
T23
T22
I/O 48 mA
SCSI
SCSI phase line, command/data.
SCSI phase line, input/output.
SCSI phase line, message.
Data handshake line from target device.
Data handshake line from target device. Duplicate of
B_SREQ
−
enabled by pulling MAD[6] HIGH at reset.
Data handshake signal from the initiator device.
Data handshake signal from the initiator device.
Duplicate of B_SACK
−
and B_SACK+ enabled by
pulling MAD[6] HIGH at reset.
SCSI bus arbitration signal, busy.
SCSI Attention, the initiator is requesting a message
out phase.
SCSI bus reset.
SCSI bus arbitration signal, select device.
For all B_SCRTL Signals:
LVD Mode: Negative and positive halves of LVDlink
signal pairs shown for SCSI Function B Control.
SE Mode: SCSI Function B Control signals shown.
+ signals are at 0 V.
HVD Mode: SCSI Function B Control signals shown.
+ signals become direction control.