HD6433937 Datasheet, PDF (470/521 Pages) Hitachi Semiconductor – Hardware Manual

PMR3—Port mode register 3
H'CA
Bit
7
6
5
4
3
2
1
0
—
— WDCKS NCS IRQ0 RESO UD
—
Initial value
0
0
0
0
0
0
0
0
Read/Write
—
—
R/W
R/W
R/W
R/W
R/W
—
I/O port
P3₁/UD pin function switch
0 Functions as P3₁ I/O pin
1 Functions as UD input pin
P3₂/RESO pin function switch
0 Functions as P3₂ I/O pin
1 Functions as RESO I/O pin
P4₃/IRQ0 pin function switch
0 Functions as P4₃ I/O pin
1 Functions as IRQ₀ input pin
TMIG noise canceler select
0 Noise cancellation function not used
1 Noise cancellation function used
Watchdog timer switch
0 ø8192
1 øw/4
PMR4—Port mode register 4
Bit
7
6
—
—
Initial value
0
0
Read/Write
—
—
H'CB
I/O port
5
4
3
2
1
0
— NMOD4 NMOD3 NMOD2 NMOD1 NMOD0
0
0
0
0
0
0
—
R/W
R/W
R/W
R/W
R/W
0 CMOS setting
1 NMOS open-drain setting
(n = 4 to 0)
Note: When the PCR2 specification is 1 (output port specification)
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