CHAPTER 15 VFD CONTROLLER/DRIVER
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User’s Manual U11302EJ4V0UM
There are 53 display output pins. Of these, 40 pins, FIP13 to FIP52, have alternate port functions. These pins
are used as port pins when display stop is set using bits 4 to 7 (DIGS0 to DIGS3) of display mode register 1 (DSPM1).
Even when display is enabled, display output pins not used for outputting digit signals and segment signals can
be used as port pins.
Table 15-1. Relationship Between Display Output Pins and Port Pins
Display Pin Name
Alternate Port Name
I/O
FIP13
P80
For output port
to
to
FIP20
P87
FIP21
P90
For output port
to
to
FIP28
P97
FIP29
P100
I/O port
to
to
FIP36
P107
FIP37
P110
I/O port
to
to
FIP44
P117
FIP45
P120
I/O port
to
to
FIP52
P127
15.2 VFD Controller/Driver Configuration
The VFD controller/driver consists of the following hardware.
Table 15-2. VFD Controller/Driver Configuration
Item
Configuration
Display output
53 pins (segments: 9 to 40, digits: 2 to 16)
Control registers
Display mode register 0 (DSPM0)
Display mode register 1 (DSPM1)
Display mode register 2 (DSPM2)
