User manual

RSKRX62T 6. Configuration
REJ10J2194-0300 Rev.3.00 Page 27 of 40
Nov 08, 2011
Table 6-12 below details the different configurations and functions of the Power Supply jumpers.
Reference Position One Position Two Position Three Related Ref.
J5* Pins 1 and 2 shorted.
Connects UC_VCC to
Board_VCC, bypassing
R26.
All pins open.
Disconnects UC_VCC
from Board_VCC.
- R26
J13* Pins 1 and 2 shorted.
Connects 3.3V regulator
(U8) to Board_VCC.
All pins open.
Disconnects the 3.3V
regulator (U8) from
Board_VCC.
- R177, J14
J14* Pins 1 and 2 shorted.
Connects Board_5V and
CON_5V to Board_VCC.
Pins 2 and 3 shorted.
Connects Board_5V and
CON_5V to the 3.3V
regulator (U8), bypassed by
R101.
All pins open.
Disconnects
Board_5V and
CON_5V from
Board_VCC,
bypassed by R101.
R101, J13
Table 6-12: Power Supply Jumpers
*By default, this jumper is not fitted to the RSK. The default position is therefore all pins open.
*By default, this jumper is not fitted to the RSK. R26 is fitted by deault and UC_VCC is connected to Board_VCC.
*By default, this jumper is not fitted to the RSK. R101 is fitted by default and Board_5V and CON_5V are
connected to Board_VCC.
6.10 Clock Configuration
Table 6-13 below details the function of the option links associated with clock configuration.
Reference Link Fitted Configuration Link Removed Configuration Related Ref.
R3 Connects XTAL (MCU, pin 11) to the
crystal X1.
Disconnects XTAL (MCU, pin 11) from
the crystal X1.
R4, R9
R4 Connects EXTAL (MCU, pin 13) to the
crystal X1.
Disconnects EXTAL (MCU, pin 13)
from the crystal X1.
R3, R8
R6 Connects EXTAL (MCU, pin 13) to the
crystal X2.
Disconnects EXTAL (MCU, pin 13)
from the crystal X2.
R7, R9
R7 Connects XTAL (MCU, pin 11) to the
crystal X2.
Disconnects XTAL (MCU, pin 11)
from the crystal X2.
R6, R8
R8 Connects EXTAL (MCU, pin 13) to
CON_EXTAL (JA2, pin 2).
Disconnects EXTAL (MCU, pin 13)
to CON_EXTAL (JA2, pin 2).
R3, R6
R9 Connects XTAL (MCU, pin 11) to
CON_XTAL (J1, pin 11).
Disconnects XTAL (MCU, pin 11) to
CON_XTAL (J1, pin 11).
R4, R7
Table 6-13: Clock Option Links