hd66100 Renesas Electronics Corporation., hd66100 Datasheet - Page 150

• Manufacturer Part Number: hd66100
• Description: H8/3867 Series
• Manufacturer: Renesas Electronics Corporation.

3. Port pull-up control register 1 (PUCR1)
PUCR1 controls whether the MOS pull-up of each of the port 1 pins P1
a PCR1 bit is cleared to 0, setting the corresponding PUCR1 bit to 1 turns on the MOS pull-up for
the corresponding pin, while clearing the bit to 0 turns off the MOS pull-up.
Upon reset, PUCR1 is initialized to H'00.
4. Port mode register 1 (PMR1)
PMR1 is an 8-bit read/write register, controlling the selection of pin functions for port 1 pins.
Upon reset, PMR1 is initialized to H'00.
Bit 7: P1
This bit selects whether pin P1
Bit 7
IRQ3
0
1
Note: Rising or falling edge sensing can be designated for IRQ
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
settings, see 3. Timer Control Register F (TCRF) in 9.4.2.
7
/IRQ
Description
Functions as P1
Functions as IRQ
3
/TMIF pin function switch (IRQ3)
PUCR1
IRQ3
R/W
R/W
7
0
7
0
7
PUCR1
IRQ2
R/W
R/W
7
7
6
0
6
0
3
/IRQ
I/O pin
/TMIF input pin
6
3
PUCR1
/TMIF is used as P1
IRQ1
R/W
R/W
5
0
5
0
5
PUCR1
IRQ4
R/W
R/W
4
0
4
0
4
PUCR1
7
TMIG
R/W
R/W
or as IRQ
3
0
3
0
3
, TMIF. For details on TMIF
3
TMOFH
PUCR1
3
R/W
R/W
/TMIF.
2
0
2
0
7
to P1
2
PUCR1
TMOFL
0
R/W
R/W
is on or off. When
1
0
1
0
(initial value)
1
PUCR1
TMOW
R/W
R/W
0
0
0
0
135
0