User manual

RSK+RX62N 6. Configuration
REJ10J2198-0201 Rev. 2.01 Page 43 of 54
Nov 30, 2011
Reference Link Fitted Configuration Link Removed Configuration Related Ref.
R165 Connects A0 (U7, pin 1) to GROUND. Disconnects A0 (U7, pin 1) from
GROUND.
R164
R166 Powers the I
2
C EEPROM IC (U7) from
Board_VCC.
Disconnects the I
2
C EEPROM IC
(U7) from Board_VCC.
R167
R167 Powers the I
2
C EEPROM IC (U7) from
Board_5V.
Disconnects the I
2
C EEPROM IC
(U7) from Board_5V.
R166
Table 6-24: External Memory Configuration (Continuation)
Table 6-25 below details the function of the jumpers associated with external memory configuration.
Reference Position One Position Two Position Three Related Ref.
J9 Pins 1 and 2 shorted.
Connects WP (U7, pin 7)
to GROUND, disabling
write protection on the
I
2
C EEPROM IC
(bypassed by R163).
All pins open. WP (U7, pin
7) is disconnected form
GROUND, enabling write
protection on the I
2
C
EEPROM IC (still
connectable by R163).
- R163
Table 6-25: External Memory Configuration