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Technologies, Inc.
We Connect
We Connect
Signal Name
SA[19:16]
SA[15:0]/SDD[15:0]
LA[23:20]
SD[15:0]
SBHE#
IOR#
IOW#
MEMR#
MEMW#
SMEMR#
SMEMW
BALE
IOCS16#
MCS16#
IOCHCK#/GPI0
IOCHRDY
RFSH#
AEN
IRQ1/MSCK
IRQ[5:3]
IRQ6/
GPI4/
SLPBTN#
IRQ7
IRQ8#/GPI1
IRQ[11:9]
IRQ12/MSDT
IRQ[15:14]
DRQ[1:0]
DRQ2/
SERIRQ/
GPIOE/
OC1#
DRQ3
DRQ[7:5]
DACK[1:0]#
DACK2#/
GPIOF/
OC0#
DACK3#
DACK[7:5]#
TC
SPKR
Preliminary Revision 0.5, November 19, 1999
ISA BUS INTERFACE
I/O
IO
Connect to ISA slots and BIOS ROM. 4.7K ohm pull-up to VCC. Connect SA[19:17] also
to LA{19:17}.
IO
Connect to ISA slots and BIOS ROM. 4.7K ohm pull-up to VCC. And connected to
secondary IDE connector through two 74F245 ICs.
IO
Connect to ISA slots. 4.7K ohm pull-up to VCC.
IO
Connect to ISA slots and a 74F245 transceiver. 4.7K ohm pull-up to VCC.
IO
Connect to ISA slots. 4.7K ohm pull-up to VCC.
IO
Same as the above.
IO
Same as the above.
IO
Same as the above.
IO
Same as the above.
O
Same as the above.
O
Same as the above.
O
Connect to ISA slots.
I
Connect to ISA slots. 330 ohm pull-up to VCC.
I
Connect to ISA slots. 330 ohm pull-up to VCC.
I
Connect to ISA slots. 4.7K ohm pull-up to VCC.
I
Connect to ISA slots. 4.7K ohm pull-up to VCC.
IO
Connect to ISA slots. 330 ohm pull-up to VCC.
O
Connect to ISA slots.
I/IO No connect.
I
Connect to ISA slots. 4.7K ohm pull-up to VCC and 68pF capacitor to ground.
I
Connect to ISA slots. 4.7K ohm pull-up to VCC and 68pF capacitor to ground.
I
I
I
Connect to ISA slots. 4.7K ohm pull-up to VCC and 68pF capacitor to ground.
I
No connect.
I
Connect to ISA slots. 4.7K ohm pull-up to VCC and 68pF capacitor to ground.
I/IO No connect.
I
Connect to ISA slots and IDE connectors. 4.7K ohm pull-up to VCC and 68pF capacitor to
ground. Both passive components should be placed near the slots.
I
Connect to ISA slots. 5.6K ohm pull-down.
I
Connect to ISA slots. 5.6K ohm pull-down.
I
IO
I
I
Connect to ISA slots. 5.6K ohm pull-down.
I
Connect to ISA slots. 5.6K ohm pull-down.
O
Connect to ISA slots.
I
Connect to ISA slots.
IO
I
I
Connect to ISA slots.
I
Connect to ISA slots.
O
Connect to ISA slots. 68pF capacitor to ground
O
Connected to speaker circuitry or AC'97 CODEC through a series 100 ohm resistor. 4.7K
ohm pull-up to VCC3 for assigning SDD bus to Audio/Game or 4.7K ohm pull-down for
unchanging SDD bus function.
Design Guide - VT82C694X Apollo Pro133 with VT82C686A
Connection
82
Signal Connectivity and Design Checklist
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