beautypg.com

24 p0abion (37h) – NEC PD17062 User Manual

Page 86

background image

86

µ

PD17062

9.24 P0ABIOn (37H)

P0ABIOn specifies the PORT0A I/O. When P0ABIOn is set to 0, PORT0A becomes an input port. When

P0ABIOn is set to 1, PORT0A becomes an output port.

9.25 SETTING OF INTERRUPT REQUEST GENERATION TIMING IN SERIAL INTERFACE MODE (38H)

b

3

b

2

b

1

b

0

P0ABIO3

P0ABIO2

P0ABIO0

37H

0

1

P0ABIO1

P0A

0

I/O setting

0

1

P0A

1

I/O setting

0

1

P0A

2

I/O setting

0

1

P0A

3

I/O setting

P0A

0

input port

P0A

0

output port

P0A

1

input port

P0A

1

output port

P0A

2

input port

P0A

2

output port

P0A

3

input port

P0A

3

output port

b

3

b

2

b

1

b

0

SIO0IMD3

SIO0IMD2

SIO0IMD0

38H

SIO0IMD1

0

0

0

1

1

0

1

1

Function

Fixed at 0

Interrupt request generated at rising edge of the 7th bit of the shift clock

Interrupt request generated at rising edge of the 8th bit of the shift clock

Interrupt request generated when the stop condition is detected

Interrupt request generated at rising edge of the 7th bit of the shift
clock immediately after the start condition is detected