upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 76
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upd78f0730
Manufacturer Part Number
upd78f0730
Description
8-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0730.pdf
(518 pages)
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4.3 Registers Controlling Port Function
(1) Port mode registers (PM0, PM1, PM3, PM6, and PM12)
76
Symbol
PM12
Port functions are controlled by the following three types of registers.
• Port mode registers (PM0, PM1, PM3, PM6, PM12)
• Port registers (P0, P1, P3, P6, P12)
• Pull-up resistor option registers (PU0, PU1, PU3, PU12)
PM0
PM1
PM3
PM6
These registers specify input or output mode for the port in 1-bit units.
These registers can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets these registers to FFH.
When port pins are used as alternate-function pins, set the port mode register by referencing 4.5 Settings of
Port Mode Register and Output Latch When Using Alternate Function.
PMmn
PM17
7
1
1
1
1
0
1
Output mode (output buffer on)
Input mode (output buffer off)
PM16
6
1
1
1
1
PM15
5
1
1
1
1
Figure 4-15. Format of Port Mode Register
PM14
Preliminary User’s Manual U19014EJ1V0UD
4
1
1
1
1
CHAPTER 4 PORT FUNCTIONS
PM13
PM33
3
1
1
1
(m = 0, 1, 3, 6, 12; n = 0 to 7)
Pmn pin I/O mode selection
PM122
PM12
PM32
2
1
1
PM121
PM01
PM11
PM31
PM61
1
PM120
PM00
PM10
PM30
PM60
0
Address
FF2CH
FF20H
FF21H
FF23H
FF26H
After reset
FFH
FFH
FFH
FFH
FFH
R/W
R/W
R/W
R/W
R/W
R/W
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