LSI LSI53C1030, Technical Manual

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3-10 Signal Description
Version 2.1 Copyright © 2001, 2002, 2003 by LSI Logic Corporation. All rights reserved.
3.4 SCSI Interface Signals
The SCSI Interface signals section describes the signals for the SCSI
Channel [0] and SCSI Channel [1] interfaces.
Table 3.8 describes the
SCSI bus clock signal that is common to both SCSI Channel [0] and
SCSI Channel [1].
In the LVD mode, the negative and positive signals form the differential
pair. In the SE mode, the negative signals represent the signal pin and
the positive signals are a virtual ground. The LSI53C1030 does not
support the HVD mode. If HVD signalling is present, the SCSI channel
3-states its drivers.
3.4.1 SCSI Channel [0] Signals
Table 3.9 describes the SCSI Channel [0] Interface signals.
Table 3.8 SCSI Bus Clock Signal
Signal Name BGA Position Type Strength Description
SCLK F3 I N/A SCSI Clock provides the 80 MHz reference
clock source for the ARM966E-S
processors and all SCSI-related timings.
Table 3.9 SCSI Channel [0] Interface Signals
Signal Name BGA Position Type Strength Description
A_SD[15:0]-
A_SD[15:0]+
Y1, AA2, AB2,
AD1, F2, G2, J4,
H1, R4, T5, T2, U2,
U5, V2, V4, W4
W5, Y2, AA3, AC1,
D1, G1, H4, H2,
P3, R5, R2, T4, U4,
U3, V5, V3
I/O SE:
48 mA
LVD:
12 mA
SCSI Channel [0] Data signals.
A_SDP[1:0]-
A_SDP[1:0]+ W2, P4
W1, P5 I/O SE:
48 mA
LVD:
12 mA
SCSI Channel [0] Data Parity signals.