HD404889_03 Datasheet, PDF (95/197 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip LCD Circuit

HD404889/HD404899/HD404878/HD404868 Series
TOC
Watchdog on
flag
(WDON)
Timer output
control logic
System reset signal
Watchdog timer
control logic
Timer C
interrupt request
flag
(IFTC)
System
clock
φ_PER
Timer B
overflow
÷2
÷4
÷8
Prescaler
(PSS) ^{÷ 32}
÷ 128
Selector
÷ 512
÷ 2048
3
Timer mode
register C1
(TMC1)
Timer read
register CL
(TRCL)
Timer read
register CU
(TRCU)
4
Timer counter C
(TCCL)
(TCCU)
4
4
Timer write register C
(TWCL)
(TWCU)
Timer output
control
Data bus
Clock line
Signal line
Timer mode
register C2
(TMC2)
Figure 47 Timer C Block Diagram
Rev.6.00, Sep.08.2003, page 95 of 197