
The IDE controller features:
PIO and IDE DMA/bus master operations
Mode 4 timings
transfer rates up to 22 MB/second
Tbuffering for PCI/IDE burst transfers master/slave IDE mode.
SCSI Controllers
The system board contains two SCSI controllers: a narrow SCSI controller (SYM53C810AE) on the
Internally, each wide channel is identical, capable of operations using either 8- or
The SYM53C810AE (narrow) contains a
The Sym53C896 (wide) contains a
Each controller has its own set of PCI configuration registers and SCSI I/O registers. As a PCI 2.1 bus master, the SYM53C896 supports burst data transfers on PCI up to the maximum rate of 132 MB/second using
In the
A wide SCSI cable provides two connectors for Ultra SCSI devices, one of which is used for the SCSI backplane. However, SCSI devices do not need to operate at the ultra transfer rate. All drives on the bus must be
System Overview