M16C/62 Group DATASHEET

Timer AMitsubishi microcomputersM16C / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERCondition : Reload register = 000316, when external trigger(rising edge of TAiIN pin input signal) is selected161 / fi X (2 – 1)Count sourceTAiIN pininput signalPWM pulse outputfrom TAiOUT pin“H”“L”“H”“L”Trigger is not generated by this signal1 / fi X nTimer Ai interruptrequest bit“1”“0”fi : Frequency of count source(f1, f8, f32, fC32)Cleared to “0” when interrupt request is accepted, or cleared by softwareNote: n = 000016 to FFFE16.Figure 1.17.12. Example of how a 16-bit pulse width modulator operatesCondition : Reload register high-order 8 bits = 0216Reload register low-order 8 bits = 0216External trigger (falling edge of TAiIN pin input signal) is selected81 / fi X (m + 1) X (2 – 1)Count source (Note1)TAiIN pin input signal“H”Underflow signal of8-bit prescaler (Note2)“L”“H”“L”1 / fi X (m + 1)1 / fi X (m + 1) X nPWM pulse outputfrom TAiOUT pinTimer Ai interruptrequest bit“H”“L”“1”“0”fi : Frequency of count source(f1, f8, f32, fC32)Cleared to “0” when interrupt request is accepted, or cleaerd by softwareNote 1: The 8-bit prescaler counts the count source.Note 2: The 8-bit pulse width modulator counts the 8-bit prescaler's underflow signal.Note 3: m = 0016 to FE16; n = 0016 to FE16.Figure 1.17.13. Example of how an 8-bit pulse width modulator operates93