H838024 datasheet(249/697 Pages) RENESAS

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Section 8 I/O Ports

Rev. 7.00 Mar 10, 2005 page 207 of 652

REJ09B0042-0700

8.3.3

Pin Functions

Table 8.6 shows the port 3 pin functions.

Table 8.6

Port 3 Pin Functions

Pin Functions and Selection Method

P37/AEVL

The pin function depends on bit AEVL in PMR3 and bit PCR37 in PCR3.

AEVL

PCR37

Pin function

P37 input pin

P37 output pin

AEVL input pin

P36/AEVH

The pin function depends on bit AEVH in PMR3 and bit PCR36 in PCR3.

AEVH

PCR36

Pin function

P36 input pin

P36 output pin

AEVH input pin

P35 to P33

The pin function depends on the corresponding bit in PCR3.

PCR3n

Pin function

P3n input pin

P3n output pin

(n = 5 to 3)

P32/TMOFH

The pin function depends on bit TMOFH in PMR3 and bit PCR32 in PCR3.

TMOFH

PCR32

Pin function

P32 input pin

P32 output pin

TMOFH output pin

P31/TMOFL

The pin function depends on bit TMOFL in PMR3 and bit PCR31 in PCR3.

TMOFL

PCR31

Pin function

P31 input pin

P31 output pin

THOFL output pin

P30/UD

The pin function depends on bit UD in PMR3 and bit PCR30 in PCR3.

PCR30

Pin function

P30 input pin

P30 output pin

UD input pin

*: Don’t care

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