
147
Bit 0: P3
0
/PWM pin function switch (PWM)
This bit selects whether pin P3
0
/PWM is used as P3
0
or as PWM.
Bit 0
PWM
Description
0
Functions as P3
0
I/O pin
(initial value)
1
Functions as PWM output pin
8.3.3
Pin Functions
Table 8.9 shows the port 3 pin functions.
Table 8.9
Port 3 Pin Functions
Pin
Pin Functions and Selection Method
P3
7
/AEVL
The pin function depends on bit SO1 in PMR3 and bit PCR3
2
in PCR3.
AEVL
0
1
PCR3
7
0
1
*
Pin function
P3
7
input pin
P3
7
output pin
AEVL input pin
P3
6
/AEVH
The pin function depends on bit AEVH in PMR3 and bit PCR36 in PCR3.
AEVH
0
1
PCR3
6
0
1
*
Pin function
P3
6
input pin
P3
6
output pin
AEVH input pin
P3
5
/TXD
31
The pin function depends on bit TE in SCR3-1, bit SPC31 in SPCR, and bit
PCR3
5
in PCR3.
SPC31
0
1
TE
0
1
PCR3
5
0
1
*
Pin function
P3
5
input pin
P3
5
output pin
TXD
31
output pin
*
: Don’t care