R2025S/D
The third method to reading data from the internal register is to start reading immediately after writing to the
Slave Address and R/W bit. Since the Internal Address Pointer is set to Fh by default as described in the first
method, this method is only effective when reading is started from the Internal Address Fh.
Example 3 of data read (when data is read from internal addresses Fh to 3h)
R/W=1(Read)
Data
Data
S 0 1 1 0 0 1 0 1 A
A
A
Slave Address
← (0110010)
Reading of data from Reading of data from
the Internal Address Fh the Internal Address 0h
Data
Data
Data
A
A
/A P
Reading of data from Reading of data from Reading of data from
the Internal Address 1h
the Internal Address 2h
the Internal Address 3h
Master to slave
Start Condition
Slave to master
Stop Condition
S
A
P
Acknowledge Signal
A
/A
26
RICOH [ RICOH ELECTRONICS DEVICES DIVISION ]
