Panasonic MN101C77C User Manual

XII - 2

Overview

Chapter 12    Serial Interface 3

This LSI contains a serial interface 3 can be used for both communication types of clock synchronous and

simple IIC (single master).

Table 12-1-1 shows the functions of serial interface 3.

Communication type

Clcok synchronous

IIC (single master)

Interrupt

SC3IRQ

SC3IRQ

Pin

SBO3, SBI3, SBT3

SDA, SCL

3 channels type

-

2 channels type

(SBO3, SBT3)

Start condition

Transfer bit count

1 to 8 bit

1 to 8 bit

First transfer bit 

Input edge / Output edge

-

ACK bit

-

ACK bit level

-

Continuous operation (with ATC1)

-

fosc/2

fosc/2

fosc/4

fosc/4

fosc/16

fosc/16

fosc/32

fosc/32

fs/2

fs/2

fs/4

fs/4

timer 5 output

timer 5 output

external clock

external clock

Maximum transfer rate

2.5 MHz

400 kHz

Clock source

fosc : machine clock (high speed oscillation)

fs : system clock  [               Chapter 2  2-5. Clock Switching  ]

At IIC communication, the transfer clock is the clock source divided by 3.