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Tsi340 Evaluation Board User Manual
80E3000_MA002_02
Integrated Device Technology
www.idt.com
2.3
Arbitration
The Tsi340 has a built-in PCI arbiter for the secondary bus. The arbitration signals are connected to the
four PCI connectors on the board.
Table 1
shows the Tsi340 arbitration signal assignment to each of
connectors.
2.4
Power
The maximum current draw per rail for the bridge board with no cards plugged-in is indicated in
Table 2
.
2.4.1
Finger Connector Current Limit
When plug-in cards are added to the Tsi340 evaluation board, the current draw must not exceed the
capacity of the finger connector. The maximum current draw per rail for the bridge board with cards
plugged-in is indicated in
Table 3
.
Table 1: Arbitration Assignment
Tsi340 REQ/GNT Signals
Connector
0
J4
1
J3
2
J2
3
J1
Table 2: Maximum Current Draw with No Plug-in Card
Rail
Current
-12 V
0A
+12 V
0A
5 V
0A
3.3 V
<750mA
3.3 VAUX
0A