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8.3.3
Pin Functions
Table 8.6 shows the port 3 pin functions.
Table 8.6
Port 3 Pin Functions
Pin
Pin Functions and Selection Method
P3
/AEVL
The pin function depends on bit AEVL in PMR3 and bit PCR3
7
P3
/AEVH
The pin function depends on bit AEVH in PMR3 and bit PCR3
6
P3
to P3
The pin function depends on the corresponding bit in PCR3.
5
3
P3
/TMOFH
The pin function depends on bit TMOFH in PMR3 and bit PCR3
2
P3
/TMOFL
The pin function depends on bit TMOFL in PMR3 and bit PCR3
1
P3
/UD
The pin function depends on bit UD in PMR3 and bit PCR30 in PCR3.
0
AEVL
PCR3
7
Pin function
P3
AEVH
PCR3
6
Pin function
P3
PCR3n
Pin function
TMOFH
PCR3
2
Pin function
P3
TMOFL
PCR3
1
Pin function
P3
UD
PCR3
0
Pin function
P3
0
0
input pin
P3
7
7
0
0
input pin
P3
6
6
0
P3
input pin
n
0
0
input pin
P3
2
2
0
0
input pin
P3
1
1
0
0
input pin
P3
0
0
Rev. 6.00, 08/04, page 201 of 628
in PCR3.
7
1
output pin
AEVL input pin
in PCR3.
6
1
output pin
AEVH input pin
1
P3
output pin
n
in PCR3.
2
1
output pin
TMOFH output pin
in PCR3.
1
1
output pin
THOFL output pin
1
output pin
UD input pin
*: Don't care
1
*
1
*
(n = 5 to 3)
1
*
1
*
1
*
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