UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 160

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

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(4) Port output mode control register 6 (POM6)
(5) LCD port function register 0 (LCDPF0)
This register sets the output mode of P60 and P61 in 1-bit units. During I
and P61/SDA0/INTP3 to N-ch open-drain output (5 V-torelant) mode.
This register can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
This register sets whether to use pins P00 to P07 as port pins (other than segment output pins) or segment
output pins.
LCDPF0 is set using a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets LCDPF0 to 00H.
LCDPF0
Symbol
Symbol
POM6
PF07
7
0
7
POM6n
PF0n
0
1
0
1
Figure 4-28. Format of Port Output Mode Control Register 6 (POM6)
PF06
Figure 4-29. Format of LCD Port Function Register 0 (LCDPF0)
6
0
6
CMOS output
N-ch open-drain output (5 V-torelant)
Used as port (other than segment output)
Used as segment output
PF05
5
0
5
P0n pin port/segment output specification (n = 0 to 7)
Preliminary User’s Manual U19748EJ1V0UD
PF04
CHAPTER 4 PORT FUNCTIONS
4
0
4
P6n pin output selection (n = 0, 1)
PF03
3
0
3
PF02
2
0
2
POM61
PF01
1
1
POM60
PF00
2
0
0
C communication, set P60/SCL0/INTP1
Address
Address
FF0EH
FF1BH
After reset
After reset
00H
00H
R/W
R/W
R/W
R/W