Avago Technologies LSI53C896 - Manual (Page 200)

4-88 Registers
Version 3.3 Copyright © 1998–2003 by LSI Logic Corporation. All rights reserved.
SEL[3:0] Selection Time-Out [3:0]
These bits select the SCSI selection/reselection time-out
period. When this timing (plus the 200
µ
s selection abort
time) is exceeded, the STO bit in the
SCSI Interrupt Status One (SIST1) register is set. For a
more detailed explanation of interrupts, refer to
Chapter 2, “Functional Description.”
Register: 0x49
SCSI Timer One (STIME1)
Read/Write
R Reserved 7
HTHBA Handshake-to-Handshake Timer Bus Activity
Enable
6
Setting this bit causes this timer to begin testing for SCSI
REQ/ and ACK/ activity as soon as SBSY/ is asserted,
regardless of the agents participating in the transfer.
GENSF General Purpose Timer Scale Factor 5
Setting this bit causes this timer to shift by a factor of 16.
Refer to the
SCSI Timer Zero (STIME0) register
description for details.
7 6 5 4 3 0
R HTHBA GENSF HTHSF GEN[3:0]
x 0 0 0 0 0 0 0