Table of Contents
Advertisement
CARD-PCI/GX Hardware Manual
A.3.2 Power requiring ON/OFF by software
Block diagram of power control circuit, which can realize powering-off by OS shutting
down, Wake on LAN or Wake on RING, is shown below. The PON/OFF SW, Wake on
LAN and Wake on RING circuits must be operated by V
When the PON/OFF switch (power switch) is held down for less than 4 seconds while
the power is on, it transits to the suspend status. Holding down the switch for more than
4 seconds, the power is turned off.
In this case, a separate suspend switch is not necessary.
Power supply
unit
(Eg. ATX
power supply)
V
CCSTB
PON/OFF
SW
SW
circuit
3.3V
Figure A.8 Example of peripheral circuit for power controlled by software
74
V
CCSTB
V
, V
, V
CC5V
CCORE
CC3V
POWERGOOD
signal of the
Reset
power supply
circuit
V
CCSTB
Wake on LAN、
Wake on RING
circuit
Suspend LED
EPSON
.
CCSTB
CARD-PCI
V
CCSTB
Reset
Powergood
POFF
PWSW#
STANDBY#
PME0#
PME1#
Rev.A
Advertisement
Table of Contents
