Avago Technologies LSI53C1010R - Manual (Page 104)

3-10 Signal Descriptions
Version 2.2 Copyright © 2000–2003 by LSI Logic Corporation. All rights reserved.
3.4 SCSI Bus Interface Signals
The SCSI Bus Interface Signals section contains tables describing the
signals for the following signal groups: SCSI Bus Interface Signals,
SCSI Function A Signals, and SCSI Function B Signals. SCSI Function A
Signals and SCSI Function B Signals each have a subgroup: the SCSI
Function A Control Signals and the SCSI Function B Control Signals.
Table 3.8 contains signals that are common to both SCSI buses.
3.4.1 SCSI Function A Signals
This section describes the signals for the SCSI Function A Signals group.
Table 3.9 describes the SCSI Function A Signals and Table 3.10
describes the SCSI Function A Control Signals.
Table 3.8 SCSI Bus Interface Signal
Name Bump Type Strength Description
SCLK F3 I N/A SCSI Clock derives all SCSI-related timings. The speed
of this clock must be 40 MHz. The clock frequency can be
quadrupled to create the 160 MHz clock required
internally by both SCSI functions.
Table 3.9 SCSI Function A Signals
Name Bump Type Strength Description
A_SD[15:0]
−
Y1, AA2, AB2, AD1,
F2, G2, J4, H1, R4,
T5, T2, U2, U5, V2,
V4, W4 I/O SE:
48 mA
SCSI
LVD:
12 mA
UniLVD
SCSI Function A Data.
LVD Mode: Negative half of the LVDlink
pair for the SCSI data lines. A_SD[15:0]
−
form the 16-bit SCSI data bus.
SE Mode: A_SD[15:0]
−
form the 16-bit
SCSI data bus.
A_SD[15:0]+ W5, Y2, AA3, AC1,
D1, G1, H4, H2, P3,
R5, R2, T4, U4, U3,
V5, V3 I/O SE:
48 mA
SCSI
LVD:
12 mA
UniLVD
SCSI Function A Data.
LVD Mode: Positive half of the LVDlink pair
for the SCSI data lines. A_SD[15:0]+ form
the 16-bit data bus.
SE Mode: A_SD[15:0]+ are at 0 V.