Panasonic MN103001G/F01K Manual De Usuario

I/O Ports

15-43

Port 7 dedicated output control register

Register symbol: P7SS
Address:

x'3600804D

Purpose:

This register selects the content output on the port 7 pins.
Valid when the P7nM is “0”.

Bit No.

7

6

5

4

3

2

1

0

Bit name

-

-

-

-

P73S

-

-

-

Reset

0

0

0

0

0

0

0

0

Access

R

R

R

R

R/W

R

R

R

P73M; P73S

00: Chip select signal 3 output (CS3)

01: Address output (A23)

1x: General-purpose output port (P73)

P72M

0: Chip select signal 2 output/DRAM RAS signal 2 output (CS2/RAS2)

* The CS2/RAS2 selection depends on the setting of the registers within the bus controller.

1: General-purpose output port (P72)

Note: For details on the bus controller register settings, refer to section 8.6, "Description of Registers."

P71M

0: Chip select signal 1 output/DRAM RAS signal 1 output (CS1/RAS1)

* The CS1/RAS1 selection depends on the setting of the registers within the bus controller.

1: General-purpose output port (P71)

P70M

0: Chip select signal 0 output (CS0)
1: General-purpose output port (P70)