2 register descriptions – Panasonic MN103001G/F01K User Manual

Page 428

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I/O Ports

15-62

15.14.2 Register Descriptions

Port C is a general-purpose output port that is also used for address bus signals A[19:16].

Each register for port C is described below.

Port C output register

Register symbol: PCOUT

Address:

x'36008018

Purpose:

This register sets the data to be output on port C.

Bit No.

7

6

5

4

3

2

1

0

Bit name

-

-

-

-

PC3O PC2O PC1O PC0O

Reset

0

0

0

0

0

0

0

0

Access

R

R

R

R

R/W

R/W

R/W

R/W

Port C output mode register

Register symbol: PCMD
Address:

x'36008038

Purpose:

This register selects the content output on the port C pins.

Bit No.

7

6

5

4

3

2

1

0

Bit name

-

-

-

-

PC3M PC2M PC1M PC0M

Reset

0

0

0

0

0

0

0

0

Access

R

R

R

R

R/W

R/W

R/W

R/W

PC3M

0: Address output (A19)
1: General-purpose output port (PC3)

PC2M

0: Address output (A18)

1: General-purpose output port (PC2)

PC1M

0: Address output (A17)
1: General-purpose output port (PC1)

PC0M

0: Address output (A16)
1: General-purpose output port (PC0)

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