Rev. 1.0, 02/00, page 220 of 1141
Port Mode Register A (PMRA)
0
1
1
1
—
2
1
—
3
1
4
1
—
1
—
5
0
7
0
R/W
—
—
R/W
6
—
—
—
—
—
PMRA7
PMRA6
—
Bit :
Initial value :
R/W :
Port mode register A (PMRA) switches the pin functions in port 6. Switching is specified in a unit
of bit. PMR6 is an 8-bit read/write register.
When reset, PMRA is initialized to H'3F.
Bit 7
P67/RP7/TMBI Pin Switching (PMRA7): PMRA7 can be used as a P6n I/O pin or a
TMBI pin for timer B event input.
Bit 7
PMRA7
Description
0
P67/RP7/TMBI pin functions as a P67/RP7 I/O pin
(Initial value)
1
P67/RP7/TMBI pin functions as a TMBI pin
Bit 6
Timer B Event Input Edge Switching (PMRA6): PMRA6 selects the TMBI edge sense.
Bit 6
PMRA6
Description
0
Timer B event input detects falling edge
1
Timer B event input detects rising edge