Appendix C
Functional
Description
C-33
C.7.3
USB
The USB interface for the Sun Blade 1500 workstation is provided by the
I/O subsystem. The supports four USB 1.1 ports. USB 1.1 is an industry
standard serial bus intended for slower peripheral devices such as the keyboard and
mouse. The protocol on the USB is of a master/slave polling nature with the
following features:
■
OpenHCI Host Controller
■
1.5 and 12 Mb/s transfer rate
■
Four host ports
C.7.4
Audio
Within the I/O subsystem is a AC97-compliant link controller that
provides a cost-effective audio solution when interfaced with any AC97 ver2.1
compliant audio CODEC. For the Sun Blade 1500 workstation, an Analog Devices
AD1881 CODEC is used.
Audio outputs and inputs are provided at the front and rear of the Sun Blade 1500
workstation. On the bezel are the monaural microphone and stereo headphone jacks.
On the rear panel are the audio-out and audio-in jacks, both of which are stereo.
Note –
If so equipped, do not remove the plastic rivet from the headphone jack of
the optical drive. Instead, use the headphone jack at the bottom of the front panel.
C.7.5
PCI Slots
Four 33 MHz and one 66 MHz PCI slots are provided on the Sun Blade 1500
motherboard. The 33 MHz slots are comprised of two 32-bit and two 64-bit. These
slots provide 5 VDC power. The 66 MHz slot is 64-bit and supplies 3.3 VDC.
In standard configurations, the bottom slot,
PCI0
, is preconfigured with the IEEE
1394/USB 2.0 combination card. The top slot,
PCI4
, has a Sun XVR-600, Sun XVR-
100, or Sun XVR-1200 graphics accelerator preinstalled.
Summary of Contents for Sun Blade 1500
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