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
DATA
1 1 1 1 1 1 0 0
Specifying FhSetting Ch in
1 1 1 1 1 0 0 0
Specifying FhSetting 8h in
SO
DATA
Reading data from
address Fh
Writing data to
in the
the Transfer
Format
in the
the Transfer
Format
address Fh
Address
Pointer
Address
Pointer
Register
Register
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.
1 Byte
8h
(1,0,0,0)
Burst
0h
(0,0,0,0)
Writing data
transfer
Reading data
transfer
Ch
(1,1,0,0)
4h
(0,1,0,0)
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Rev.2.01
- 24 -
RICOH [ RICOH ELECTRONICS DEVICES DIVISION ]
