Maxim Integrated 78M6631 Evaluation Board - Manual (Page 13)

UM_6631_077 78M6631 Evaluation Board User Manual
Rev 1 13
Schematic
and
Silkscreen
Reference
Default
Setting
Description Use
J20 Not
Inserted
Jumper Voltage Input Phase C Configuration. Allows connection
of this input to 3.3VDC Supply (V3P3) if this Voltage Input
in not connected/not used.
J26 2-3 Jumper Selection of Delta or Wye configuration.
Position 1-2 Delta Configuration.
Position 2-3 Wye Configuration.
J7 Not
Inserted
Jumper If not inserted the 78M6631 operates in normal condition,
if inserted the input V1 comparator (supply under-voltage
detection) is disabled, in this condition the WD Timer is
also disabled.
J21 1-2 Jumper/Connector VBAT input configuration. Use as connector for external
battery or if battery not present set position 1-2.
J35 Inserted Jumper UART Rx Connection. Remove J35 if external transceiver
is used. Insert J35 if the on-board USB/UART transceiver
is used.
J22 Not
Inserted
Test Point I 2 C bus test point.
Pin 1 = SCDC (Serial Clock).
Pin 2 = SDATA (Data).
J23 Inserted Jumper Connection of LED1 (Red) if inserted.
J25 Inserted Jumper Connection of LED2 (Yellow) if inserted.
J28 Inserted Jumper Connection of LED3 (Yellow) if inserted.
J29 Inserted Jumper Connection of LED4 (Green) if inserted.
J31 Inserted Jumper Connection of LED5 (Green) if inserted.
J32 N/A Connector SPI Port Connector – Refer to Table 2 .
J27 N/A Connector In-Circuit Emulator Connector – Refer to Table 3 .
J21 1-2 Jumper/Connector External Battery Connector/Jumper – Refer to Table 4 .
J36 N/A Connector /Test
Point
UART External Transceiver/Test Point – Refer to Table 5 .
J33 N/A Connector External 5VDC supply – Refer to Table 6 .
J24 N/A Connector Digital I/O Connector – Refer to Table 7 .
J34 N/A Connector USB Connector – Refer to Table 11 .