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I/o base address, Memory [0] low, Register: 0x0f – Avago Technologies LSI53C1030 User Manual

Page 95

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PCI Configuration Space Register Description

4-9

Version 2.2

Copyright © 2001, 2002, 2003 by LSI Logic Corporation. All rights reserved.

Register: 0x0F

Reserved

Reserved

[7:0]

This register is reserved.

Register: 0x10–0x13

I/O Base Address
Read/Write

The I/O Base Address register maps the operating register set into I/O
Space. The LSI53C1030 requires 256 bytes of I/O Space for this base
address register. Hardware sets bit 0 to 0b1. Bit 1 is reserved and
returns 0b0 on all reads.

I/O Base Address

[31:2]

This field contains the I/O Base address.

Reserved

[1:0]

This field is reserved.

Register: 0x14–0x17

Memory [0] Low
Read/Write

The

Memory [0] Low

register and the

Memory [0] High

register map

SCSI operating registers into Memory Space [0]. This register contains
the lower 32 bits of the Memory Space [0] base address. Hardware
programs bits [9:0] to 0b0000000100, which indicates that the Memory

7

0

Reserved

0

0

0

0

0

0

0

0

31

2

1

0

I/O Base Address

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

31

0

Memory [0] Low

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

0

0