UPD78F1502AGK-GAK-AX Datasheet, PDF (377/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 7 REAL-TIME COUNTER
(17) Port mode register 3 (PM3)
This register sets port 3 input/output in 1-bit units.
When using the P30/RTC1HZ/TO00/TI03/INTP1 pin for real-time counter correction clock output, the
P31/RTCDIV/RTCCL/TI00/TO03/PCLBUZ1/INTP2 pin for real-time counter clock output, set PM30, PM31 and the
output latches of P30, P31 to 0.
PM3 can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets PM3 to FFH.
Figure 7-18. Format of Port Mode Register 3 (PM3)
• 78K0R/LF3
Address: FFF23H After reset: FFH R/W
Symbol
7
6
5
4
PM3
1
1
1
1
3
PM33
2
PM32
1
PM31
0
PM30
• 78K0R/LG3, 78K0R/LH3
Address: FFF23H After reset: FFH R/W
Symbol
7
6
5
4
PM3
1
1
1
PM34
3
PM33
2
PM32
1
PM31
0
PM30
PM3n
0
1
P3n pin I/O mode selection (n = 0 to 4)
Output mode (output buffer on)
Input mode (output buffer off)
R01UH0004EJ0501 Rev.5.01
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Jun 20, 2011