H8SSLASH2225 datasheet(424/1071 Pages) RENESAS

424 / 1071 page

Section 10 I/O Ports

Rev. 5.00 Aug 08, 2006 page 338 of 982

REJ09B0054-0500

• PB1/A9/TIOCB3

The pin functions are switched as shown below according to the combination of operating mode,

the TPU channel 3*3 setting, AE3 to AE0 bits in PFCR, and the PB1DDR bit.

Operating mode

Modes 4 to 6

Mode 7

AE3 to AE0

Other than

B'000x



TPU channel 3

setting*



Output

Input or initial

value

Output

Input or initial

value

PB1DDR





PB1

input

PB1

output

PB1

input

PB1

output

Pin functions

A9 output

TIOCB3*

output pin

TIOCB3*

3 input

pin*

TIOCB3*

output pin

TIOCB3*

3 input

pin*

Notes: 1. For the setting of the TPU channel, see section 11, 16-Bit Timer Pulse Unit (TPU).

2. This pin functions as TIOCB3 input when TPU channel 3 timer operating mode is set to

normal operating mode and IOB3 to IOB0 in TIORH_3 are set to 10xx.

3. Not available in the H8S/2227 Group.

• PB0/A8/TIOCA3

The pin functions are switched as shown below according to the combination of the operating

mode, TPU channel 3*3 setting, the AE3 to AE0 bits in PFCR, and the PB0DDR bit.

Operating mode

Modes 4 to 6

Mode 7

AE3 to AE0

Other than

B'0000



TPU channel 3

setting*



Output

Input or initial

value

Output

Input or initial

value

PB0DDR





PB0

input

PB0

output

PB0

input

PB0

output

Pin functions

A8 output

TIOCA3*

output pin

TIOCA3*

3 input

pin*

TIOCA3*

output pin

TIOCA3*

3 input

pin*

Notes: 1. For the setting of the TPU channel, see section 11, 16-Bit Timer Pulse Unit (TPU).

2. This pin functions as TIOCA3 input when TPU channel 3 timer operating mode is set to

normal operating mode and IOA3 to IOA0 in TIORH_3 are set to 10xx.

3. Not available in the H8S/2227 Group.

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