Specifications

PC/II+p Board Technical Reference Manual 85
MT002615 ©1999-2001, Megatel Computer Corporation
9.2 Mass I/O Power & Ground Pins
Table 47 Signals – Mass I/O J903,J904 – Power & Miscellaneous
PIN NAME PIN# SIGNAL NAME SIGNAL DESCRIPTION
+3.3V
J904 - a8 +3.3v +3.3V – SOURCED BY CPU BOARD; DO NOT
SUPPLY EXTERNAL POWER TO THIS PIN
+5V
J904 - a1 +5V Power +5V – SOURCED BY CPU BOARD; DO
NOT SUPPLY EXTERNAL POWER TO THIS PIN
+5V
J903 - b11 +5V Power +5V – SOURCED BY CPU BOARD; DO
NOT SUPPLY EXTERNAL POWER TO THIS PIN
+5V
J903 - a11 +5V Power +5V – SOURCED BY CPU BOARD; DO
NOT SUPPLY EXTERNAL POWER TO THIS PIN
GND
J904 - c1 Ground Ground
GND
J903 - d11 Ground Ground
GND
J903 - c11 Ground Ground
PWRGOOD
J904 - d8 Power Good This signal is the Power Good output signal. It
pulses low for 200 ms (typical, minimum 130 ms)
when triggered by RSTSW# or by a Watchdog
Timer Expired event, and it remains low whenever
VCC is below the reset threshold or when the
RSTSW# signal input is a logic low. This output
signal remains low for 200ms (typical, minimum
130 ms) after one of the following occurs: VCC
rises above the reset threshold, the watchdog
triggers a reset, or the RSTSW# input signal goes
low to high.