Avago Technologies LSI53C1020 - Manual (Page 28)

2-2 Functional Description
Version 2.4 Copyright © 2001–2004 by LSI Logic Corporation. All rights reserved.
Fusion-MPT architecture and how to control the LSI53C1020 using
Fusion-MPT technology.
2.1 Block Diagram Description
The LSI53C1020 consists of two major modules: a host interface module
and an Ultra320 SCSI channel module. The modules consist of the
following components:
•
Host Interface Module
– Up to a 64-bit, 133 MHz PCI/PCI-X Interface
– System Interface
– I/O Processor (IOP)
– DMA Arbiter and Router
– Shared RAM
– External Memory Interface
◊
Flash ROM Memory Controller
◊
NVSRAM
– Timer and Configuration Control
◊
Device Configuration Controller
◊
Serial EEPROM Interface Controller
◊
General Purpose I/O (GPIO) Interface
◊
Chip Timer
•
Ultra320 SCSI Channel Module
– Datapath Engine
– Context Manager
– Ultra320 SCSI Core
Figure 2.1 illustrates the relationship between these modules.