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Table 2.1 pci bus commands and encoding types, Pci bus commands and encoding types, Table 2.1 – Avago Technologies LSI53C1000R User Manual

Page 35

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PCI Functional Description

2-5

Version 2.2

Copyright © 2000–2003 by LSI Logic Corporation. All rights reserved.

2.1.2.1 Interrupt Acknowledge Command

The LSI53C1000R does not respond to this command as a slave and it
never generates this command as a master.

2.1.2.2 Special Cycle Command

The LSI53C1000R does not respond to this command as a slave and it
never generates this command as a master.

Table 2.1

PCI Bus Commands and Encoding Types

C_BE[3:0]/

Command Type

Supported

as Master

Supported

as Slave

0000

Interrupt Acknowledge

No

No

0001

Special Cycle

No

No

0010

I/O Read

Yes

Yes

0011

I/O Write

Yes

Yes

0100

Reserved

N/A

N/A

0101

Reserved

N/A

N/A

0110

Memory Read

Yes

Yes

0111

Memory Write

Yes

Yes

1000

Reserved

N/A

N/A

1001

Reserved

N/A

N/A

1010

Configuration Read

No

Yes

1011

Configuration Write

No

Yes

1100

Memory Read Multiple

Yes

1

1. Refer to the

DMA Mode (DMODE)

register.

Yes (defaults to 0110)

1101

Dual Address Cycle (DAC)

Yes

Yes

1110

Memory Read Line

Yes

1

Yes (defaults to 0110)

1111

Memory Write and
Invalidate

Yes

2

2. Refer to the

Chip Test Three (CTEST3)

register.

Yes (defaults to 0111)

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