Avago Technologies LSI53C1000R - Manual (Page 165)

SCSI Registers 4-53
Version 2.2 Copyright © 2000–2003 by LSI Logic Corporation. All rights reserved.
Register: 0x1A
Chip Test Two (CTEST2)
Read Only (bit 3 write)
R Reserved 7
SIGP Signal Process 6
This bit is a copy of the SIGP bit in the
Interrupt Status Zero (ISTAT0) register (bit 5). The SIGP
bit signals a running SCRIPTS instruction. When this
register is read, the SIGP bit in the ISTAT0 register is
cleared.
CIO Configured as I/O 5
This bit is defined as the Configuration I/O Enable Status
bit. This read only bit indicates if the chip is currently
enabled as I/O space.
CM Configured as Memory 4
This bit is defined as the configuration memory enable
status bit. This read only bit indicates if the chip is
currently enabled as memory space.
Note: Bits 4 and 5 may be set if the chip is mapped in both I/O
and memory space. Also, bits 4 and 5 may be set if the
chip is dual-mapped.
PCICIE PCI Configuration Info Enable 3
This bit controls the shadowing of the
PCI
Base Address Register One (BAR1) (MEMORY) , PCI
Base Address Register Two (BAR2) (MEMORY) , PCI
Base Address Register Three (BAR3) (SCRIPTS RAM) ,
PCI Base Address Register Four (BAR4) (SCRIPTS RAM) ,
PCI Device ID , and PCI Revision ID (RID)
into the Scratch Register A (SCRATCHA) ,
Memory Move Read Selector (MMRS) ,
Scratch Register B (SCRATCHB) ,
Memory Move Write Selector (MMWS) , and
SCRIPT Fetch Selector (SFS) registers.
7 6 5 4 3 2 0
R SIGP CIO CM PCICIE R
x 0 x x 0 x x x