Avago Technologies LSI53C320 - Manual (Page 37)

SCSI Interface Signals 3-3
Version 2.2 Copyright © 2003 by LSI Logic Corporation. All rights reserved.
3.2 SCSI Interface Signals
Table 3.1 describes the SCSI interface signals for the A Side of the
LSI53C320.
Table 3.1 SCSI A Side Interface Signals
Signal Name BGA Pin Type Description
A_SSEL+
A_SSEL- G1
H3 I/O A Side Select signal.
A_SBSY+
A_SBSY- K3
K1 I/O A Side Busy signal.
A_SRST+
A_SRST- J3
J2 I/O A Side Reset signal.
A_SREQ+
A_SREQ- F2
F1 I/O A Side Request signal.
A_SACK+
A_SACK- J1
K2 I/O A Side Acknowledge signal.
A_SMSG+
A_SMSG- H2
H1 I/O A Side Message signal.
A_SCD+
A_SCD- G3
G2 I/O A Side Control and Data signal.
A_SIO+
A_SIO- E1
F3 I/O A Side Input and Output signal.
A_SATN+
A_SATN- L2
L3 I/O A Side Attention signal.
A_SDP[1:0]+
A_SDP[1:0]- V2, M1
W1, M2 I/O A Side Data Parity signals.
A_SD[15:0]+
A_SD[15:0]-
W3, W4, Y3, V5, B1, D2, C1, E3,
N1, N3, P2, P3, T1, T2, T3, V1,
Y2, V4, Y4, W5, C2, D3, D1, E2,
N2, P1, R1, R2, R3, U1, U2, U3
I/O A Side Data signals.
A_DIFFSENS B3 I A Side Differential Sense signal.
A_RBIAS M3 RBIAS A Side current control. Attach a
10 k
Ω
pull-up resistor on RBIAS
to provide the correct bias level.