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Technologies, Inc.
We Connect
We Connect
Signal Name
PME#/THRM/GPI5
PWRBTN#
SLPBTN#/IRQ6/GPI4
RSMRST
EXTSMI#
IOD 10K ohm pull-up to 3VSB if the function is not applied.
SMBALRT#/GPI6
LID/GP13
RING#/GP17
BATLOW#/GP12
CPUSTP#/GPO4
PCISTP#/GPO5
SUSA#/GPO1
SUSB#/GPO2
SUSC#
SUSST1#/GPO6
SUSCLK
Signal Name
PWRGD
PCIRST#
RSTDRV
OSC
BCLK
RTCX1
RTCX2
Signal Name
VCC
VCCSUS
VCCHWM
GNDHWM
VCCUSB
GNDUSB
VBAT
GND
Preliminary Revision 0.5, November 19, 1999
POWER MANAGEMENT
I/O
I
10K ohm pull-up to 3VSB if the function is not applied.
I
Connect to Power Button circuitry.
10K ohm pull-up to VCC3 if the function is not applied.
I
Connect to Resume Reset circuitry.
I
10K ohm pull-up to 3VSB if the function is not applied.
I
10K ohm pull-up to 3VSB if the function is not applied.
I
I
Connected to external modem circuitry to allow the system to be re-activated by a received
phone call. 10K ohm pull-up to 3VSB.
I
10K ohm pull-up to 3VSB if the function is not applied.
Connect to the system clock synthesizer to disable the CPU clock outputs if the function is
O
applied. Otherwise, no connect.
O
Connect to the system clock synthesizer to disable the PCI clock outputs if the function is
applied. Otherwise, no connect.
10K ohm pull-up to 3VSB if the function is not applied.
O
O
10K ohm pull-up to 3VSB if the function is not applied.
O
Connect to ATX Power On circuitry.
Connect to VT82C694X. 10K ohm pull-up to 3VSB.
O
O
10K ohm pull-up to 3VSB
RESET AND CLOCKS
I/O
I
Connect to VT82C694X and Power Good circuitry.
O
Connect to PCI slots and PCI devices.
O
Connected to VT82C694X and IDE connectors through a 74F240 inverter IC. And direct
connect to ISA slots not through inverter.
I
Connect to the 14.318MHz clock output of the system clock synthesizer.
O
Connected to ISA slots through corresponding 33 ohm series resistors.
I
Connect to a 32.768KHz (RTC) crystal circuitry.
O
Connect to a 32.768KHz (RTC) crystal circuitry.
POWER AND GROUND
I/O
P
Connect to VCC3.
P
Connect to 3VSB.
P
Connected to VCC3 through a ferrite bead.
P
Connected to ground through a ferrite bead.
P
Connected to VCC3 through a ferrite bead.
P
Connected to ground through a ferrite bead.
P
Connect to battery circuitry.
P
Connect to digital ground
Design Guide - VT82C694X Apollo Pro133 with VT82C686A
Connection
Connection
Connection
89
Signal Connectivity and Design Checklist
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