SCSI Shadow Registers
4-119
Registers: 0xF4–0xFF
Reserved
This register is reserved.
4.3 SCSI Shadow Registers
Note:
For more information concerning shadow registers, refer to
the
,
,
Memory Move Read Selector (MMRS)
Memory Move Write Selector (MMWS)
, and
register descriptions.
Registers: 0x34–0x37
Shadowed Scratch Register A (SCRATCHA)
Read/Write
SCRATCHA
Scratch Register A
[31:0]
When the Configuration Info Enable bit in the
register is set, SCRATCH Register A is
placed in the shadowed mode and returns bits [31:10] of
the PCI
Base Address Register One (BAR1) (MEMORY)
in bits [31:10]. Bits [9:0] of SCRATCH A will always return
zero in this mode. Writes to the SCRATCHA register have
no effect. Clearing the PCI Configuration Info Enable bit
causes the SCRATCH A register to return to normal
operation.
31
0
R
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
SCRATCHA
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
Содержание LSI53C1000
Страница 6: ...vi Preface...
Страница 16: ...xvi Contents...
Страница 28: ...1 12 Introduction...
Страница 234: ...4 124 Registers...
Страница 314: ...6 40 Specifications This page intentionally left blank...
Страница 318: ...6 44 Specifications This page intentionally left blank...
Страница 344: ...6 70 Specifications This page intentionally left blank...
Страница 350: ...6 76 Specifications Figure 6 42 LSI53C1000 329 Ball Grid Array Bottom view...
Страница 352: ...6 78 Specifications...
Страница 360: ...A 8 Register Summary...
Страница 376: ...IX 12 Index...