User manual

RSK+RX62N 6. Configuration
REJ10J2198-0201 Rev. 2.01 Page 41 of 54
Nov 30, 2011
6.11 Power Supply Configuration
Table 6-21 below details the function of the option links associated with power supply configuration.
Reference Link Fitted Configuration Link Removed Configuration Related Ref.
R172 Connects Unregulated_VCC to the
PWR1 connector, pin 3.
Disconnects Unregulated
_VCC from the PWR1 connector, pin
3.
-
R173 Connects CON_5V to the main power
supply.
Disconnects CON_5V from the main
power supply.
-
R174 Connects Board_5V to the main 5V
power supply.
Disconnects Board_5V from the main
5V power supply.
-
R175 Connects the 3.3V regulator to the
main 3.3V connections.
Disconnects the 3.3V regulator from
the main 3.3V connections.
R176, R177
R176 Connects CON_3V3 to the main 3.3V
power supply (via R175).
Disconnects CON_3V3 from the main
3.3V power supply (via R175).
R175
R177 Connects UC_VCC to the main 3.3V
power supply, bypassing J13 (via
R175).
Connects UC_VCC to the main 3.3V
power supply, bypassing J13 (via
R175).
R175
R325 Connects 3V3USB to CON_3V3USB. Disconnects 3V3USB from
CON_3V3USB.
R326, R327,
R328
R326 Connects 3V3USB to Board_VCC. Disconnects 3V3USB from
Board_VCC.
R325, R327,
R328
R327 Connects 5VUSB to CON_5VUSB. Disconnects 5VUSB from
CON_5VUSB.
R325, R326,
R327
R328 Connects 5VUSB to Board_5V. Disconnects 5VUSB from Board_5V. R325, R326,
R327
Table 6-21: Power Supply Option Links
Table 6-22 below details the function of the jumpers associated with power supply configuration.
Reference Position One Position Two Position Three Related Ref.
J10 & J11 Pins 1 and 2 shorted on
both jumpers. Power
supply regulated is
bypassed, to allow a
regulated 5V supply to be
used.
All pins open on both
jumpers. Power supply is
used, allowing an
unregulated 7-15V supply
to be used.
All other combinations
are unsupported, and
may cause damage to
the RSK+.
-
J12* Pins 1 and 2 shorted.
Connects USB0VBUS to
Board VCC.
Pins 2 and 3 shorted.
Connects USB0VBUS to
VBUS from USB0 via J18
(can be bypassed by R322)
All pins open. Discon-
nects both lines.
J18, J21,
R322
J13* Pins 1 and 2 shorted.
Connects UC_VCC to the
output of the 3.3V
regulator, via R175
(bypassed by R177).
All pins open. Disconnects
UC_VCC from the output of
the 3.3V regulator (still
connectable via R177).
- R177
J21* Pins 1 and 2 shorted.
Connects VBUS
(connector USB0, pin 1)
to the main power supply.
All pins open. Disconnects
VBUS (connector USB0,
pin 1) from the main power
supply.
- J12
Table 6-22: Power Supply Jumpers (Continued Overleaf)
*By default, this jumper is not fitted to the RSK. The default position is therefore all pins open.