Avago Technologies LSI53C1020 - Manual (Page 120)

4-42 PCI Host Register Description
Version 2.4 Copyright © 2001–2004 by LSI Logic Corporation. All rights reserved.
Register: 0x40
Request Queue
Read/Write
The Request Queue accepts Request Post MFAs from the host system
on writes.
Request Queue [ 31:0]
For reads, this register contains 0xFFFFFFFF. For writes,
the register contains the Request Post MFA.
Register: 0x44
Reply Queue
Read/Write
The Reply Queue provides Reply Post MFAs to the host system on reads
and accepts Reply Free MFAs from the host system on writes.
Reply Queue [31:0]
For reads, this register contains the Reply Post MFA. For
writes, the register contains the Reply Free MFA.
31 0
Request Queue
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
31 0
Reply Queue
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1