Memory [0] high, Memory [1] low, Register: 0x1c–0x1f – Avago Technologies LSI53C1030 User Manual
Page 96
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PCI Host Register Description
Version 2.2
Copyright © 2001, 2002, 2003 by LSI Logic Corporation. All rights reserved.
Space [0] base address is 64 bits wide and that the memory data is not
prefetchable. The LSI53C1030 requires 1024 bytes of memory space.
Memory [0] Low
[31:0]
This field contains the Memory [0] Low address.
Register: 0x18–0x1B
Memory [0] High
Read/Write
The
register and the
register map
SCSI operating registers into Memory Space [0]. This register contains
the upper 32 bits of the Memory Space [0] base address. The
LSI53C1030 requires 1024 bytes of memory space.
Memory [0] High
[31:0]
This field contains the Memory [0] High address.
Register: 0x1C–0x1F
Memory [1] Low
Read/Write
The
register and the
register map the
RAM into Memory Space [1]. This register contains the lower 32 bits of
the Memory Space [1] base address. Hardware programs bits [12:0] to
0b0000000000100, which indicates that the Memory Space [1] base
address is 64 bits wide and that the memory data is not prefetchable.
The LSI53C1030 requires 64 Kbytes of memory for Memory Space [1].
Memory [1] Low
[31:0]
This field contains the Memory [1] Low address.
31
0
Memory [0] High
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
0
31
0
Memory [1] 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