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FUJITSU MB91460 SERIES FR60 User Manual

Page 495

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Chapter 30 I/O Ports

3.Port Register Settings

P20: The functions of Port 20 are controlled by PFR20 and EPFR20

P20[7:0] is input/output for LIN-UART serial communication signals SCK, SOT, SIN of channels 2 and 3, Up-/
Down-Counter inputs ZIN, BIN, AIN of channels 0 and 1, and Free Run Timer FRT inputs CK of channels 2 and
3. Otherwise, the port can be used as general purpose port.

PFR20.6

0 - Port is in general purpose port mode.
1 - Port is in resource function mode:

EPFR20.6 0 - Resource function is SCK3 input/output

1 - Resource function is ZIN1 and CK3 input

PFR20.5

0 - Port is in general purpose port mode.
1 - Port is in resource function mode:

EPFR20.5 0 - Resource function is SOT3 output

1 - Resource function is BIN1 input

PFR20.4

0 - Port is in general purpose port mode.
1 - Port is in resource function mode:

Resource function is SIN3 and AIN1 input

PFR20.2

0 - Port is in general purpose port mode.
1 - Port is in resource function mode:

EPFR20.2 0 - Resource function is SCK2 input/output

1 - Resource function is ZIN0 and CK2 input

PFR20.1

0 - Port is in general purpose port mode.
1 - Port is in resource function mode:

EPFR20.1 0 - Resource function is SOT2 output

1 - Resource function is BIN0 input

PFR20.0

0 - Port is in general purpose port mode.
1 - Port is in resource function mode:

Resource function is SIN2 and AIN0 input

Addr

7

6

5

4

3

2

1

0

initial

PFR20

0D94h

-

PFR20.6

PFR20.5

PFR20.4

-

PFR20.2

PFR20.1

PFR20.0

-000 -000

EPFR20

0DD4h

-

EPFR20.6

EPFR20.5

-

-

EPFR20.2

EPFR20.1

-

-00- -00-

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W