HD404629R Datasheet, PDF (85/157 Pages) Renesas Technology Corp – AS Microcomputer Incorporating a DTMF Generator Circuit

HD404629R Series
Octal counter
(OC)
Serial interrupt
request flag
(IFS)
SO
Idle control
logic
SCK
SI
I/O control
logic
Clock
Serial data
register
(SRL/U)
System
clock
ø_PER
Transfer
control
1/2
÷2
1/2
÷8
÷32
÷128
÷512
÷2048
Data bus
Clock line
Signal line
Serial mode register
A
(SMRA)
Serial mode register
B
(SMRB)
Figure 70 Block Diagram of Serial Interface
83