Chapter 5 Serial Functions

5-4-3 Serial Interface Mode Registers

(1) Serial interface 0 mode register (SC0MD0)

SC0MD0

7

6

5

4

3

2

1

0

SC0CE0 SC0CE1 SC0DIR SC0STE SC0LNG2SC0LNG1SC0LNG0

(at reset: -00XX000)

SC0LNG2

SC0LNG1

SC0LNG0

Transfer bit count

 

 

 

 

 

 

 

 

0

0

8 bit

 

 

 

 

 

 

0

1

7 bit

 

 

 

 

 

1

0

6 bit

 

 

 

 

 

 

1

5 bit

 

 

 

 

 

 

 

0

0

4 bit

 

 

 

 

 

 

1

 

1

3 bit

 

 

 

 

 

1

0

2 bit

 

 

 

 

 

 

1

1 bit

 

 

 

 

 

 

 

 

 

SC0STE

Selection of synchronous

serial start condition

 

 

 

 

 

 

 

0

Disable start condition

 

1

Enable start condition

 

 

SC0DIR

First bit to be transferred

 

 

 

 

 

0

MSB first

 

 

1

LSB first

 

 

 

 

 

SC0CE0

SC0CE1

Receive data

Transmit data

 

 

 

input edge

output edge

0

 

0

Rising

Falling

0

 

1

Falling

Rising

1

 

0

Falling

Falling

 

 

 

 

 

1

 

1

Rising

Rising

Figure 5-4-3 Serial Interface 0 Mode Register 0 (SC0MD0: X'03F50', R/W)

108 Serial Interface Control Registers

Page 122
Image 122
Panasonic MN101C00 user manual Serial Interface Mode Registers, Serial interface 0 mode register SC0MD0, SC0STE, SC0DIR