RV5C386A-E2 Просмотр технического описания (PDF) - RICOH Co.,Ltd.

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RV5C386A-E2

I2C-Bus Real-Time Clock ICs with Voltage Monitoring Function

RICOH Co.,Ltd. 

PRELIMINARY

RV5C386A

2) The second method to reading data from the internal register is to start reading immediately after writing

to the Internal Address Pointer and the Transmission Format Register. Although this method is not based

on I2C-Bus standard in a strict sense it still effective to shorten read time to ease load to the master. Set

4h to the transmission format register when this method used.

Example 2 of data read (when data is read from internal addresses Eh to 1h)

R/W=0(Write)

S 0 1 1 0 0 1 0 0 A1 1 1 0 0 1 0 0 A

Data

A

Slave Address

← (0110010)

Address Transmission

Pointer Format

←Eh Register←4h

Reading of data from

the internal address Eh

Data

A

Data

A

Data

/A P

Reading of data from Reading of data from Reading of data from

the internal address Fh the internal address 0h the internal address 1h

Master to slave

S Start Condition

A A /A Acknowledge Signal

Slave to Master

P Stop Condition

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