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VT-SBC-C3558R | User Manual 21
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J5 Clear RTC jumper
This jumper allows you to reset all register bits in the RTC well.
Normal mode (default):
Pins 1 and 2 shorted
or
No shorting
Clear RTC mode:
Pins 2 and 3 shorted
Note: Unless registers are being cleared (only to be done in the G3 power state), the
signal input must always be high when all other RTC power planes are on.
2.4.18
J6 LPC debug connector (18)
The LPC debug connector is for connecting a debug card to monitor the BIOS POST status.
Specification: 2 x 4, 2 x 2mm, 2A, 4.7mmH, M, Vert, WDT, SMT, RoHS
Pinout description:
Pin
Name
Type
Description
1
DBG_LPC_LAD0
IO
LPC_LAD0
2
+V3P3A
P
+3.3VDC POWER
3
DBG_LPC_LAD1
IO
LPC_LAD1
4
SOC_LPC_FRAME_N
O
LPC_FRAME
5
DBG_LPC_LAD2
IO
LPC_LAD2
6
SOC_LPC_CLKOUT1
O
LPC_CLK
7
DBG_LPC_LAD3
IO
LPC_LAD3
8
GND
P
Ground
Pin 1
Pin 2