10.4.4 Setting of FRC Overflow Flag (OVF) ·····································································195
10.5 CPU Interrupts and DTC Interrupts ···················································································195
10.6 Synchronization of Free-Running Timers 1 to 3 ································································196
10.6.1 Synchronization after a Reset ·················································································196
10.6.2 Synchronization by Writing to FRCs ······································································196
10.7 Sample Application ············································································································200
10.8 Application Notes ··············································································································200
Section 11 8-Bit Timer
11.1 Overview ····························································································································207
11.1.1 Features ···················································································································207
11.1.2 Block Diagram ········································································································208
11.1.3 Input and Output Pins ·····························································································209
11.1.4 Register Configuration ····························································································209
11.2 Register Descriptions ·········································································································209
11.2.1 Timer Counter (TCNT) - H'FFD4 ···········································································209
11.2.2 Time Constant Registers A and B
(TCORA and TCORB) - H'FFD2 and H'FFD3 ······················································210
11.2.3 Timer Control Register (TCR) - H'FFD0 ································································210
11.2.4 Timer Control/Status Register (TCSR) ···································································212
11.3 Operation ····························································································································214
11.3.1 TCNT Incrementation Timing ················································································214
11.3.2 Compare Match Timing ··························································································215
11.3.3 External Reset of TCNT ·························································································217
11.3.4 Setting of TCNT Overflow Flag ·············································································218
11.4 CPU Interrupts and DTC Interrupts ···················································································218
11.5 Sample Application ············································································································219
11.6 Application Notes ··············································································································220
Section 12 PWM Timer
12.1 Overview ····························································································································227
12.1.1 Features ···················································································································227
12.1.2 Block Diagram ········································································································227
12.1.3 Input and Output Pins ·····························································································228
12.1.4 Register Configuration ····························································································229
12.2 Register Descriptions ·········································································································229
12.2.1 Timer Counter (TCNT) - H'FFC2, H'FFC4, H'FFCA ············································229
12.2.2 Duty Register (DTR) - H'FFC1, H'FFC5, H'FFC9 ·················································230
12.2.3 Timer Control Register (TCR) - H'FFC0, H'FFC4, H'FFC8 ··································230
12.3 Operation ····························································································································232
12.4 Application Notes ··············································································································234
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