Functional Area; Connecting Both Areas; Figure 2-2 Pin Patch Area; Table 2-1 Overview Of Functional Signals - NEC AB-050-FX3-U User Manual

A component assembled to the SMD1 field will therefore be connected between the device pin and VSS.
A component assembled to the SMD2 field will be connected between the device pin and VCC.

2.1.2 Functional Area

The Functional Area holds the drivers for RS-232, LIN bus and CAN. Additionally other patch areas are available
as well to directly assemble LEDs, PowerDrivers and connectors to the board.
Note:
For detailed information about the operation of the used RS-232, LIN bus and CAN drivers refer to the related
datasheets of those devices.

2.1.3 Connecting both areas

The Electrical and Functional Areas are not connected to one another except by a common VSS plane.
Nevertheless by use of Jumpers a signal connection between the Electrical Area and the Functional Area is
possible.
The following signals are available on the related jumper fields:
Figure 2-2
Signal
_Reset
VDD
Flash programming (PG-FP4)
NWIRE
UARTDn (n=0..7)
CANn (n=0..4)
Table 2-1 Overview of functional signals
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NEC Electronics (Europe) GmbH
VDD
SMD2
SMD1
VSS
Device
signal
Pin Patch Area
Jumper
CN52
CN49
CN48
JP2
CN48
CN9
CN24