Irt Pc Small Computer Systems Interface Adapter; I Specifications; I Removal And Replacement Procedures - IBM 6150 Hardware Maintenance Manual

TNL SN20-9843 (03-27-87) to 75X0152 or 75X0166
IRT
PC Small Computer Systems Interface Adapter
I Specifications
Notes:
1. The RT PC Small Computer Systems Interface Adapter is abbreviated
as RT PC SCSI Adapter in this publication.
2. The RT PC SCSI Adapter should not share interrupt level 11 with either
of the 4-port asynchronous adapters.
The RT PC SCSI Adapter provides for the attachment of devices that use
the Small Computer System Interface (SCSI) bus to the IBM 6150 and
6151 System Units. The RT PC SCSI Adapter uses the I/O channel to
communicate with the 32-bit processor and coprocessor.
Slot positions
I/O addresses
DMA Channels
Interrupt level
Maximum number
IBM 6150, slots 2, 4, 5, 7 (also slot 8 except with
DMA channel 7)
IBM 6151, slots 2, 3, 4 (also slot 5 except with
DMA channel 7)
Primary, OD50 - OD5F
Secondary, 0950 - 095F
0,1,3,5,6,7 (program controlled)
11, 12 (both shared, see note 2 above)
2
I Removal and Replacement Procedures
Use the Adapter Removal and Replacement procedures in Section 4.
Adapters 9-073-1