Compaq EN Series - D.2 Functional Description

Appendix D Compaq 10/100 TX PCI Intel WOL UTP Controller Card
Compaq Personal Computers
Changed - June 1998
D-2
D.2 FUNCTIONAL DESCRIPTION
The Compaq 10/100 TX PCI Intel WOL UTP Controller card contains the 82558 controller (with
ROMs and support logic), three LED status indicators, a WOL header connector, a RJ-45
network connector, and power switching logic (Figure D-2).
Figure D–2.
Compaq 10/100 TX PCI Intel WOL UTP Controller Card Block Diagram
D.2.1 STATUS INDICATORS
The LEDs provide the following indications:
Link LED
(yellow) – Indicates reception of link pulses in 10 MB/s mode, scrambler lock in 100
MB/s mode.
Activity LED
(green) – Indicates network activity.
100 TX LED
(green) – Indicates connection with 100 MB/s network.
RJ-45
Connector
TX/RX
82558
Ethernet
Controller
PCI Bus
WOL
Header
Active
(
Green
)
Link
(
Yellow
)
100TX
(
Green
)
Power/
Clock
Transition
Lo
g
ic
+5AUX
PCI
Connector
WAKEUP
+5VDC
31
25 MHz
Clock
Circuitry
EEP/
Flash
ROM
PME-
Pulse
Generator
PCI CLK
CLK
CLK