hd64338342hw Renesas Electronics Corporation., hd64338342hw Datasheet - Page 259

• Manufacturer Part Number: hd64338342hw
• Description: Renesas 8-bit Single-chip Microcomputer H8 Family/h8/300l Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

In the H8/38347 Group and H8/38447 Group this pin is a combined P31/UD/EXCL pin. Refer to
the description of port mode register 2 in 8.3, Port 2, for details on switching to the EXCL pin
function.
Bit 0: P3
This bit selects whether pin P3
Bit 0
PWM
0
1
8.4.3
Table 8.9 shows the port 3 pin functions.
Table 8.9
Pin
P3
P3
P3
P3
7
6
5
4
/AEVL
/AEVH
/TXD
/RXD
31
31
0
/PWM pin function switch (PWM)
Pin Functions
Port 3 Pin Functions
Functions as P3
Functions as PWM output pin
Description
Pin Functions and Selection Method
The pin function depends on bit SO1 in PMR3 and bit PCR3
The pin function depends on bit AEVH in PMR3 and bit PCR3
The pin function depends on bit TE in SCR3-1, bit SPC31 in SPCR, and bit
PCR3
The pin function depends on bit RE in SCR3-1 and bit PCR3
Pin function
Pin function
Pin function
Pin function
5
SPC31
PCR3
PCR3
PCR3
PCR3
AEVH
AEVL
in PCR3.
RE
TE
0
0
7
6
5
4
/PWM is used as P3
I/O pin
P3
P3
P3
P3
7
6
5
4
input pin
input pin
input pin
input pin
0
0
0
0
0
or as PWM.
0
0
0
0
0
Rev. 6.00 Aug 04, 2006 page 223 of 680
P3
P3
P3
P3
7
6
4
5
output pin
output pin
output pin
output pin
1
1
1
1
2
4
TXD
Section 8 I/O Ports
RXD
AEVH input pin
AEVL input pin
in PCR3.
6
in PCR3.
REJ09B0145-0600
in PCR3.
31
31
output pin
(initial value)
input pin
1
1
1
1
1
*
*
*
*