NEC V850ES/Jx3-H, Руководство пользователя

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V850ES/Jx3H – Plug it!
3.14 Layout of solder-short pads
Several pins of the 70F3760 microcontroller are connected to solder short-pads. The pads can be
opened by the user to add user specific functions. The signal connected to each solder-short pad is
printed on the
V850ES/Jx3-H - Plug it!
board. To open a circuit, cut the narrow part of the pad with a knife.
To short a circuit again, join the separated pad with a soldering iron.
Figure 5: Solder-short pad opened shape
Figure 6: Solder-short pad shortened shape
Solder-short pad
name
Shipping state
Connection
P90-P97 Short
connection to seven-segment LED
Open pads if port pins shall have other usage.
FLMD0 Open
FLMDO to CPU port P37
Shorten pad if flash self programming is used.
EVDD Short
EVDD to VDD
Open if EVDD is driven by other voltage.
AVREF0 Short
VDD to AVREF0
Open when AVREF0 is driven by other voltages.
AVREF1 Short
VDD to AVREF1
Open when AVREF1 is driven by other voltages.
UVDD Short
VDD to UVDD
Open when UVDD is driven by other voltages.
RXD Short
P30/TXDC0
Open when P30 isn’t used for USB1
communication interface.
P78-P711 Short
SW1, bits 5-8
Open when P78-P711 isn’t used for general-
purpose input.
P02 Short
P02 to standby pin of 48MHz oscillator (U10)
Open when on-board 48MHz oscillator isn’t used
as USB clock.
P03 Short
P03 to output pin of 48MHz oscillator (U10)
Open when on-board 48MHz oscillator isn’t used
as USB clock.
P98 Short
P98 to SW3
Open when P98 is used for other purposes.
P99 Short
P99 to SW4
Open when P99 is used for other purposes.
P41 Short
P41 to USB D+ pull-up signal enable pin.
Open when you don’t use USB D+ pull-up enable.
P42 Short
P42 to USB D+ pull-up signal pin.
Open when you don’t use USB D+ pull up signal.
T_RESET Short
U2 Pin4 to T_RESET
Open when the on-board Reset Circuit isn’t used.
Table 7: Solder-short pad connection
User’s Manual U19647EE2V0UM00
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