HD404459 Datasheet, PDF (69/122 Pages) Renesas Technology Corp – 4-bit HMCS400-series microcomputers

HD404459 Series
Timer C
Timer C Functions: Timer C (figure 52) has the following functions.
 Free-running/reload timer
 Watchdog timer
 Timer output operation (toggle, 0, 1, and PWM outputs)
Watchdog on
flag (WDON)
System
reset signal
Watchdog timer
control logic
Timer C interrupt
request flag
(IFTC)
TOC
System ^øPER
clock
Timer output
control logic
Timer read register CU (TRCU)
Timer output
control
Timer read
register CL
(TRCL)
Clock
Timer counter C
(TCC)
Overflow
Selector
Prescaler S (PSS)
Timer write
register CU
(TWCU)
Free-running
/reload control
Timer write
register CL
(TWCL)
3
Timer mode
register C1
(TMC1)
3
Timer mode
register C2
(TMC2)
Figure 52 Block Diagram of Timer C
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