RX5C348A Datasheet, PDF (24/45 Pages) RICOH electronics devices division – 4-WIRE SERIAL INTERFACE

Rx5C348A/B
(3) Combination of 1-byte Reading and writing Data Transfer Formats
The 1-byte reading and writing data transfer formats can be combined together and further followed by any other
data transfer format.
Example of Reading Modify Writing Data Transfer
(For Reading and Writing Data from and to Address Fh)
CE
SI
11111100
11111000
DATA
SO
DATA
Specifying FhSetting Ch in _{Reading data from}
in the
the Transfer
address Fh
Address
Format
Pointer
Register
Specifying FhSetting 8h in
in the
the Transfer
Address
Format
Pointer
Register
Writing data to
address Fh
Data transfer from the host
Data transfer from the RTCs
The reading and writing data transfer formats correspond to the settings in the transfer format register as shown
in the table below.
Writing data
transfer
Reading data
transfer
1 Byte
8h
(1,0,0,0)
Ch
(1,1,0,0)
Burst
0h
(0,0,0,0)
4h
(0,1,0,0)
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Rev.2.01
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