Response id zero (respid0), Response id one (respid1), Register: 0x4a – Avago Technologies LSI53C896 User Manual
Page 203: Register: 0x4b
SCSI Registers
4-91
Version 3.3
Copyright © 1998–2003 by LSI Logic Corporation. All rights reserved.
Register: 0x4A
Response ID Zero (RESPID0)
Read/Write
RESPID0
Response ID Zero
[7:0]
RESPID0 and
contain the
selection or reselection IDs. In other words, these two
8-bit registers contain the ID that the chip responds to on
the SCSI bus. Each bit represents one possible ID with
the most significant bit of
representing ID 15 and the least significant bit of
RESPID0 representing ID 0. The
register still contains the chip ID used during arbitration.
The chip can respond to more than one ID because more
than one bit can be set in the RESPID1 and RESPID0
registers. However, the chip can arbitrate with only one
ID value in the
register.
Register: 0x4B
Response ID One (RESPID1)
Read/Write
RESPID1
Response ID One
[7:0]
and RESPID1 contain the
selection or reselection IDs. In other words, these two 8-bit
registers contain the ID that the chip responds to on the
SCSI bus. Each bit represents one possible ID with the
most significant bit of RESPID1 representing ID 15 and the
least significant bit of RESPID0 representing ID 0. The
register still contains the chip ID used
during arbitration. The chip can respond to more than one
ID because more than one bit can be set in the RESPID1
and RESPID0 registers. However, the chip can arbitrate
with only one ID value in the
register.
7
0
ID
x
x
x
x
x
x
x
x
15
8
ID
x
x
x
x
x
x
x
x