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Avago Technologies LSI53C1010 User Manual

Page 22

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1-2

Using the Programming Guide

Table 1.1

Features and Functions of LSI53C7XX/8XX/10XX Family Chips (part 1)

LSI53C770

LSI53C810A

LSI53C860

LSI53C815

LSI53C825A
LSI53C825AJ

Maximum Transfer
Rate

20 Mbytes/s
synchronous
(with Wide
SCSI)

5 Mbytes/s
asynchronous
10 Mbytes/s
synchronous

5 Mbytes/s
asynchronous
20 Mbytes/s
synchronous
(with Ultra
SCSI)

5 Mbytes/s
asynchronous
10 Mbytes/s
synchronous

10 Mbytes/s
asynchronous
20 Mbytes/s
synchronous

DMA FIFO Size
(bytes)

96

80

80

64

88 or 536

Synchronous
Offset (levels)

16

8

8

8

16

SCRIPTS RAM

4 Kbytes

None

None

None

4 Kbytes

Differential SCSI

No

No

No

No

HVD

Wide SCSI

Yes

No

No

No

Yes

External Memory
Interface

No

No

No

Yes

Yes

Instruction Prefetch Yes

Yes

Yes

No

Yes

Load/Store
Instructions

No

Yes

Yes

No

Yes

Enhanced Move
Register Capability

No

No

No

No

Yes

SCSI Selected As
ID Bits

No

Yes

Yes

No

Yes

Number of 32-bit
SCRATCH
Registers

1

2

2

2

10

PCI Caching

No

Yes

Yes

No

Yes

Selectable IRQ
Disable

No

Yes

Yes

No

Yes

Big/Little Endian
Support

Big or Little
Endian

Little Endian

Little Endian

Big or Little
Endian

Big or Little
Endian (except
LSI53C825AJ)

PCI Data Bus

N/A

32-Bit

32-Bit

32-Bit

32-Bit

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