Devices On The Pci Bus; Integrated Drive Electronics (Ide) - HP Net Vectra Technical Reference Manual

PCI Device
PL/PCI bridge
PCI/ISA bridge
IDE controller
USB controller
Integrated graphics controller
PCI slot #1
PCI slot #2
Transfer Rates Versus
Modes of Operation
2 System Board

Devices on the PCI Bus

Devices on the PCI Bus
Device
Device Name
Number
Chip-set 0 (00h)
1 (01h)
S3 Trio 64V2 13 (0Dh)
J6 7 (07h)
J11 10 (0Ah)
The distribution of the interrupt lines is described more fully on page 59.

Integrated Drive Electronics (IDE)

The IDE controller is implemented as part of the Bridge chip. It is driven
from the PCI bus, and has PCI-Master capability. It supports Ultra ATA (also
known as Ultra DMA), Enhanced IDE (EIDE) and Standard IDE. To use the
Enhanced IDE features the drives must be compliant with Enhanced IDE.
Up to four IDE devices are supported: two (one master and one slave)
connected to the primary channel, and two (one master and one slave) to
the secondary channel. A cable is supplied that provides a single connector
for one device to one channel.
The controller supports 32-bit Windows I/O transfers. Five PIO modes, three
DMA modes, and three Ultra ATA/33 modes are supported. The five
supported PIO modes allow the following transfer rates.
Mode
Cycle time (ns)
Transfer rate (MB/s)
26
Function AD[xx]
0 11
0 26
1
2
0 24
— 18
— 21
0 1
600 383
3.33 5.22
Chip-set Interrupt Connection
INTA INTB INTC INTD
— — —
— — —
— — —
— — —
A — —
A B C
D A B
2 3
240 180
8.33 11.1
—
—
—
—
—
D
C
4
120
16.7