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5-2
SCSI Controller
Connecting SCSI Devices
5.1
Connecting SCSI Devices
The SPARCbook provides a 30-pin high density (Hosiden style) connector,
to which you can connect the supplied SCSI adapter cable. This cable
provides a 50-way high density SCSI-2 connector that can be used to make
connection to SCSI devices.
5.2
NCR53C9X SCSI Controller
The FSC is a high performance superset of the NCR53C90 ASC and
provides fast SCSI operation with additional commands and an additional
configuration register. Speed of operation is enhanced by the MACIO’s
integral DMA controller.
The FSC provides full support of ANSI X3.131 SCSI and SCSI-2 standard.
5.2.1
53C9X register set
The SCSI controller internal registers appear from base address
0x78800000. Table 5-1 shows the address offset of the SCSI internal
registers.
Address
Register
Access
0x78800000
Transfer Count Low Register
R/W
0x7880000
4
Transfer Count Mid Register
R/W
0x7880000
8
FIFO Data Port Register
R/W
0x7880000
C
Command Port Register
R/W
0x788000
10
Status Port Register
R
Select / Reconnect Bus ID register
W
0x788000
14
Interrupt Status Register
R
Select / Reconnect Timeout Register
W
0x788000
18
Sequence Step Register
R
Sync Period Register
W
0x788000
1C
FIFO Flags Register
R
Sync Offset register
W
0x788000
20
Configuration 1 Register
R/W
Table 5-1 FSC Register Set
S3GX_TRMBook Page 2 Friday, September 19, 1997 11:39 am
Содержание SPARCbook 3 series
Страница 1: ...Series Technical Reference Manual 980327 02 3 S3GX_TRMBook Page i Friday September 19 1997 11 39 am...
Страница 8: ...viii S3GX_TRMBook Page viii Friday September 19 1997 11 39 am...
Страница 28: ...1 16 Architecture Overview Microcontroller Subsystem S3GX_TRMBook Page 16 Friday September 19 1997 11 39 am...
Страница 44: ...2 16 The SPARC CPU SBus Controller S3GX_TRMBook Page 16 Friday September 19 1997 11 39 am...
Страница 76: ...5 8 SCSI Controller DMA Support S3GX_TRMBook Page 8 Friday September 19 1997 11 39 am...
Страница 82: ...6 6 Ethernet Interface DMA Support for Network Operations S3GX_TRMBook Page 6 Friday September 19 1997 11 39 am...
Страница 96: ...7 14 PCMCIA Interface Microcontroller Registers S3GX_TRMBook Page 14 Friday September 19 1997 11 39 am...
Страница 146: ...9 28 MODEM Class 2 Fax Command Set S3GX_TRMBook Page 28 Friday September 19 1997 11 39 am...
Страница 180: ...11 30 Display Interface RAMDAC S3GX_TRMBook Page 30 Friday September 19 1997 11 39 am...
Страница 210: ...B 10 Connector Information Removable Hard Drive SCSI Connector S3GX_TRMBook Page 10 Friday September 19 1997 11 39 am...
Страница 216: ...Index vi S3GX_TRMBook Page vi Friday September 19 1997 11 39 am...