Panasonic MN101C77C User Manual

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Overview

Chapter 12    Serial Interface 3

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Serial Interface 3 Block Diagram

SBO3/SDA/P51

SBI3/P50

SBT3/SCL/P52

M

U

X

SC3IOM

SBO3/SDA/P51

SC3IOM

SC3SBOS

SC3SBIS

SC3SBTS

SC3MST

-

SC3MD1

-

-

0

7

SC3IRQ

SWAP

SC3DIR

SC3CE1

SC3SBIS

Read/Write

3

SC3MD0

SC3LNG0

SC3LNG1

SC3LNG2

SC3STE

SC3DIR

-

SC3CE1

SC3BSY

0

7

ACK control circuit

Clock

control circuit

SC3TRB

Shift register

IRQ control circuit

BUSY

generation circuit

Transfer bit counter

Start condition

generation circuit

SC3STE

SC3CMD

   sc3psc

(Prescaler output)

SC3STE

SC3SBTS

SC3SBOS

Start condition

detection circuit

M

U

X

IIC clcok 

generation sircuit

POL

POL

7

SC3CTR

SC3ACKO

SC3ACKS

SC3CMD

SC3REX

-

SC3STC

IICBSY

0

-

M

U

X

SC3CE1