UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 161

• Manufacturer Part Number: UPD78F0838
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

(6) LCD port function register 3 (LCDPF3)
(7) LCD port function register ALL (LCDPFALL)
This register sets whether to use pins P30 to P37 as port pins (other than segment output pins) or segment
output pins.
LCDPF3 is set using a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets LCDPF3 to 00H.
This register sets whether to use pins P13 to P16, P74 to P77, P80 to P87, and P90 to P97 as port pins (other
than segment output pins) or segment output pins.
LCDPFALL is set using a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets LCDPFALL to 00H.
LCDPF3
LCDPFALL PF7UPNIB
Symbol
Symbol
PF37
7
PF7UPNIB
PF3n
PFnALL
7
PF1n
Figure 4-31. Format of LCD Port Function Register ALL (LCDPFALL)
0
1
0
1
0
1
0
1
PF36
Figure 4-30. Format of LCD Port Function Register 3 (LCDPF3)
6
Used as port (other than segment output)
Used as segment output
PF16
6
Used as port (other than segment output)
Used as segment output
Used as port (other than segment output)
Used as segment output
Used as port (other than segment output)
Used as segment output
PF35
5
Pnm pin port/segment output specification (n = 8, 9; m = 0 to 7)
PF15
5
P3n pin port/segment output specification (n = 0 to 7)
Preliminary User’s Manual U19748EJ1V0UD
P1n pin port/segment output specification (n = 3 to 6)
P7n pin port/segment output specification (n = 4 to 7)
PF34
CHAPTER 4 PORT FUNCTIONS
4
PF14
4
PF33
3
PF13
3
PF32
2
PF9ALL PF8ALL
2
PF31
1
1
PF30
0
0
0
Address
FF0DH
Address
FF1AH
After reset
After reset
00H
00H
R/W
R/W
R/W
R/W
159