Avago Technologies LSI53C1030 - Manual (Page 33)

Block Diagram Description 2-3
Version 2.2 Copyright © 2001, 2002, 2003 by LSI Logic Corporation. All rights reserved.
Figure 2.1 LSI53C1030 Block Diagram
2.1.1 Host Interface Module Description
The host interface module provides an interface between the host driver
and the two SCSI channels. The host interface module controls system
DMA transfers and the host side of the LSI Logic Fusion-MPT
architecture. It also supports the external memory, serial EEPROM, and
General Purpose I/O (GPIO) interfaces. This section provides a detailed
explanation of the host interface submodules.
U320 SCSI
Datapath Engine
Secondary [0] Bus
SCSI Channel [0] Module
U320
SCSI
Shared
RAM
Timer, GPIO,
Serial GPIO
EEPROM
External
System
DMA
Arbiter
and
Router
PCI/PCI-X
Interface
IOP
and EEPROM Memory
Host Interface Module
U320
SCSI Channel [1] Module
U320
SCSI
(ARM966E-S)
(ARM966E-S)
Context Manager
Datapath Engine
(ARM966E-S)
Context Manager
Core
SCSI Core
PCI-X
PCI/
Secondary [1] Bus
Flash ROM/
Primary Bus
NVSRAM
Bus to Bus
Bridge
Bus to Bus
Bridge
Interface