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Specifications
ARM DUI 0447J
Copyright © 2009-2014, ARM. All rights reserved.
B-7
ID052914
Non-Confidential
B.2
Electrical Specification
This section provides information about the voltage and current characteristics for the
motherboard.
B.2.1
Power supply loading
Table B-1
shows the current loading for the ATX power supply by the motherboard.
Table B-2
shows the maximum current loading for the motherboard voltage regulators by the
CoreTile Express or LogicTile Express daughterboards.
Note
You can stack up to eight daughterboards in each site of the V2M-P1 motherboard. Although
the 3V3 voltage regulator can supply 1A to each stack, ARM recommends that each
daughterboard draws only 100mA to give each stack a 200mA safety margin.
These values represent the motherboard PCB tracking and regulator component limits.
Table B-1 Motherboard electrical characteristics
Symbol
Description
Min
Max
Peak
Unit
12V
12V from ATX power supply
0
10
10
A
5V
5V from ATX power supply
0
10
10
A
3.3V
3.3V from ATX power supply
0
10
10
A
–12V
–12V from ATX power supply
0
0
-
A
5V
standby 5V from ATX power supply
0.1
1
1
A
Table B-2 Daughterboard electrical characteristics
Symbol
Description
Current for each
motherboard site.
Unit
5V
Main daughterboard supply
5
A
3V3
For configuration logic only
1
A
VIO, 0.8-3V3
IO voltage to motherboard
5
A