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Operational Specifications
3.2.1 Power Supply Select Jumpers (JP1 and JP2)
Rev.1.00 June 1,2005 3-14
REJ11J0002-0100Z
3
3.2.1 Power Supply Select Jumpers (JP1 and JP2)
The SH7206 uses 3.3V and 1.25V power supply voltages. The JP1 and JP2 allow the sources for the SH7206
power supply voltages (3.3V and 1.25V) to be selected.
Figure3.2.2 shows the SH7206 Power Supply Voltage Select Jumpers Assignment (JP1 and JP2).
Table3.2.1 and Table3.2.2 list jumper settings for selecting SH7206 power supply voltage.
: Initial Setting
3.3V
PWRSEL
Top view of the
component side
J
P1
J
P2 1.2V
PWRSEL
1
2
3
1
2
3
Board edge
Figure3.2.2 SH7206 Power Supply Voltage Select Jumper Assignment (JP1 and JP2)
Table3.2.1 Jumper Settings for Selecting SH7206 Power Supply Voltage (JP1)
Jumper Setting Function
1-2
3.3 V fixed power supply voltage (supplied from regulator)
JP1
3.3V PWRSEL
2-3
External power supply voltage (supplied from J3)
Table3.2.2 Jumper Settings for Selecting SH7206 Power Supply Voltage (JP2)
Jumper Setting Function
1-2
1.25 V fixed power supply voltage (supplied from regulator)
JP2.
1.2V PWRSEL
2-3
External power supply voltage (supplied from J5)
Note: Do not change jumper settings while the M3A-HS60 is being operated. Be sure to turn off the power of the
M3A-HS60 before changing jumper settings for all the time.