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Figure2.1 lsi53c876 block diagram, Lsi53c876 block diagram, Figure 2.1 – Avago Technologies LSI53C876E User Manual

Page 24

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2-2

Functional Description

Figure 2.1

LSI53C876 Block Diagram

4 Kbyte

SCRIPTS RAM

8 Dword SCRIPTS

Prefetch Buffer

Oper

ating

Registers

SCSI SCRIPTS

Processor

536 Byte

DMA FIFO

SCSI FIFO and SCSI Control Block

TolerANT

Drivers and Receivers

PCI Master and Slave Control Block, PCI Configuration Registers (2 sets), and SCSI Function Arbitration

Wide Ultra SCSI Controller

Ser

ial EEPR

OM Controller

and A

utoconfigur

ation

R

OM/Flash Memor

y Control

Local

Bus

Memory

4 Kbyte

SCRIPTS RAM

8 Dword SCRIPTS

Prefetch Buffer

SCSI SCRIPTS

Processor

536 Byte

DMA FIFO

SCSI FIFO and SCSI Control Block

TolerANT

Drivers and Receivers

Wide Ultra SCSI Controller

Oper

ating

Registers

PCI Bus

SCSI Function B

Wide Ultra

SCSI Bus

SCSI Function A

Wide Ultra

SCSI Bus

ROM/Flash

Memory

Bus

2-Wire Serial

EEPROM Bus

2-Wire Serial

EEPROM Bus