3 pin configurations – Panasonic MN103001G/F01K User Manual

Page 380

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I/O Ports

15-14

15.3.3 Pin Configurations

Table 15-3-1 shows the pin configurations for port 1.

Table 15-3-1 Port 1 Configuration

Port

Pin

P1n

P1M = "1"

P1M = "0"

No.

P1nD = "1"

P1nD = "0"

Port 1 96

P10

General-purpose output port

General-purpose input port

D0 *

1

Data input/output

<<AS>>

<<Address strobe output *Setting invalid>>

95

P11

General-purpose output port

General-purpose input port

D1 *

1

Data input/output

<<RWSEL>>

<<Read/write select output *Setting invalid>>

94

P12

General-purpose output port

General-purpose input port

D2 *

1

Data input/output

93

P13

General-purpose output port

General-purpose input port

D3 *

1

Data input/output

91

P14

General-purpose output port

General-purpose input port

D4 *

1

Data input/output

90

P15

General-purpose output port

General-purpose input port

D5 *

1

Data input/output

89

P16

General-purpose output port

General-purpose input port

D6 *

1

Data input/output

88

P17

General-purpose output port

General-purpose input port

D7 *

1

Data input/output

[Note 1]

: When reset (in address/data separate mode)

"General-purpose input port" is selected

in address/data multiplex mode

. pin No. 95 and 96,

however, are set as RWSEL and AS, respectively.

*1

: In the event of a reset

in address/data separate mode

, the P1PU bit in the P1MD register is set

to "1" and the data pins (the 8 bits D[7:0]) are pulled up.

<<>>

: These pins are set

in address/data multiplex mode

.

Setting invalid:

In address/data multiplex mode

, pin No. 95 is used only for RWSEL, and pin No. 96 is used

only for AS; the P1MD and P1DIR settings are invalid.

[Note 2]

Setting P1M to "0"

in address/data multiplex

mode is prohibited.

[Note 3]

When the bus authority is granted, D7 to D0, AS, and RWSEL go to high impedance.

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