M16C User Manual.pdf

Timers’ functions for three-phase motor controlMitsubishi microcomputersM16C / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERThree-phase output buffer register 0 (Note)b7 b6 b5 b4 b3 b2 b1 b0Symbol Address When resetIDB0 034A16 0016Bit SymbolBit nameFunctionRWDU0U phase output buffer 0 Setting in U phase output buffer 0DUB0DV0DVB0DW0DWB0U phase output buffer 0V phase output buffer 0V phase output buffer 0W phase output buffer 0W phase output buffer 0Setting in U phase output buffer 0Setting in V phase output buffer 0Setting in V phase output buffer 0Setting in W phase output buffer 0Setting in W phase output buffer 0Nothing is assigned.In an attempt to write to these bits, write “0”. The value, if read, turns out to be “0”.Note: When executing read instruction of this register, the contents of three-phase shiftregister is read out.Three-phase output buffer register 1 (Note)b7 b6 b5 b4 b3 b2 b1 b0Symbol Address When resetIDB1 034B16 0016Bit SymbolBit nameFunctionRWDU1U phase output buffer 1 Setting in U phase output buffer 1DUB1DV1DVB1DW1DWB1U phase output buffer 1V phase output buffer 1V phase output buffer 1W phase output buffer 1W phase output buffer 1Setting in U phase output buffer 1Setting in V phase output buffer 1Setting in V phase output buffer 1Setting in W phase output buffer 1Setting in W phase output buffer 1Nothing is assigned.In an attempt to write to these bits, write “0”. The value, if read, turns out to be “0”.Note: When executing read instruction of this register, the contents of three-phase shiftregister is read out.Dead time timerb7b0Symbol Address When resetDTT 034C16 IndeterminateFunction Values that can be set R WSet dead time timer 1 to 255Timer B2 interrupt occurrences frequency set counterb3b0Symbol Address When resetICTB2 034D16 IndeterminateFunction Values that can be set R WSet occurrence frequency of timer B2interrupt request1 to 15Note1: In setting 1 to bit 1 (INV01) - the effective interrupt output specification bit - of threephasePWM control register 0, do not change the B2 interrupt occurrences frequencyset counter to deal with the timer function for three-phase motor control.Note2: Do not write at the timing of an overflow occurrence in timer B2.Figure 1.18.2. Registers related to timers for three-phase motor control102