M16C/62 Group DATASHEET

More documents

Recommendations

Info

Timers’ functions for three-phase motor controlMitsubishi microcomputersM16C / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERSawtooth modulationTo generate a PWM waveform of sawtooth wave modulation, set “1” in the modulation mode select bit (bit6 at 034816). Also, set “0” in the timers A4-1, A1-1, and A2-1 control bit (bit 1 at 034916). In this mode, thetimer registers of timers A4, A1, and A2 comprise conventional timers A4, A1, and A2 alone, and reloadthe corresponding timer register’s content to the counter every time the timer B2 counter’s content becomes000016. The effective interrupt output specification bit (bit 1 at 034816) and the effective interruptoutput polarity select bit (bit 0 at 034816) go nullified.An example of U phase waveform is shown in Figure 1.18.8, and the description of waveform outputworkings is given below. Set “1” in DU0 (bit 0 at 034A16), and set “0” in DUB0 (bit 1 at 034A16). In addition,set “0” in DU1 (bit 0 at 034A16) and set “1” in DUB1 (bit 1 at 034A16).When the timber B2 counter’s content becomes 000016, timer B2 generates an interrupt, and timer A4starts outputting one-shot pulses at the same time. In this instance, the contents of the three-phase bufferregisters DU1 and DU0 are set in the three-phase output shift register (U phase), and the contents of___DUB1 and DUB0 are set in the three-phase output register (U phase). After this, the three-phase bufferregister’s content is set in the three-phase shift register every time the timer B2 counter’s content becomes000016.___The value of DU0 and that of DUB0 are output to the U terminal (P80) and to the U terminal (P81)respectively. When the timer A4 counter counts the value written to timer A4 (038F16, 038E16) and whentimer A4 finishes outputting one-shot pulses, the three-phase output shift register’s content is shifted one___position, and the value of DU1 and that of DUB1 are output to the U phase output signal and to the Uoutput signal respectively. At this time, one-shot pulses are output from the timer for setting dead timeused for setting the time over which the “L” level of the U phase waveform doesn’t lap over the “L” level of___the U phase waveform, which has the opposite phase of the former. The U phase waveform output thatstarted from the “H” level keeps its level until the timer for setting dead time finishes outputting one-shotpulses even though the three-phase output shift register’s content changes from “1” to “0 ”by the effect ofthe one-shot pulses. When the timer for setting dead time finishes outputting one-shot pulses, 0 alreadyshifted in the three-phase shift register goes effective, and the U phase waveform changes to the “L”level. When the timer B2 counter’s content becomes 000016, the contents of the three-phase bufferregisters DU1 and DU0 are set in the three-phase shift register (U phase), and the contents of DUB1 and___DUB0 are set in the three-phase shift register (U phase) again.A U phase waveform is generated by these workings repeatedly. With the exception that the three-phase______output shift register on the U phase side is used, the workings in generating a U phase waveform, whichhas the opposite phase of the U phase waveform, are the same as in generating a U phase waveform. Inthis way, a waveform can be picked up from the applicable terminal in a manner in which the “L” level of___the U phase waveform doesn’t lap over that of the U phase waveform, which has the opposite phase ofthe U phase waveform. The width of the “L” level too can be adjusted by varying the values of timer B2___ ___and timer A4. In dealing with the V and W phases, and V and W phases, the latter are of opposite phase___of the former, have the corresponding timers work similarly to dealing with the U and U phases to generatean intended waveform.___Setting “1” both in DUB0 and in DUB1 provides a means to output the U phase alone and to fix the Uphase output to “H” as shown in Figure 1.18.9.109
Timers’ functions for three-phase motor controlMitsubishi microcomputersM16C / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERA carrier wave of sawtooth waveformCarrier waveSignal waveTimer B2Trigger signal fortimer Ai start(timer B2 overflowsignal)Interrupt occurres.Rewriting the value of timer A4.Data transfer is made from the threephasebuffer register to the threephaseshift register in step with thetiming of the timer B overflow.Timer A4 outputU phase outputsignalU phaseoutput signalm n o pThe three-phaseshift registershifts insynchronizationwith the fallingedge of timer A4.U phaseU phaseDead timeNote: Set to sawtooth modulation mode and to three-phase mode 0.Figure 1.18.8. Timing chart of operation (3)110
Page 1 and 2:
Customer Interface Publication: KCH
Page 3:
DescriptionMitsubishi microcomputer
Page 7 and 8:
DescriptionMitsubishi microcomputer
Page 9 and 10:
Pin DescriptionMitsubishi microcomp
Page 11 and 12:
MemoryMitsubishi microcomputersM16C
Page 13 and 14:
CPUMitsubishi microcomputersM16C /
Page 15 and 16:
ResetMitsubishi microcomputersM16C
Page 17 and 18:
ResetMitsubishi microcomputersM16C
Page 19 and 20:
SFRMitsubishi microcomputersM16C /
Page 21 and 22:
SFRMitsubishi microcomputersM16C /
Page 23 and 24:
Memory Space Expansion FunctionsMit
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Processor ModeMitsubishi microcompu
Page 31 and 32:
Processor ModeMitsubishi microcompu
Page 33 and 34:
Bus SettingsMitsubishi microcompute
Page 35 and 36:
Bus ControlMitsubishi microcomputer
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Clock Generating CircuitMitsubishi
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Status Transition Of BCLKMitsubishi
Page 49 and 50:
Power controlMitsubishi microcomput
Page 51 and 52:
InterruptMitsubishi microcomputersM
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60: InterruptMitsubishi microcomputersM
Page 67 and 68: ________NMI InterruptMitsubishi mic
Page 69 and 70: Precautions for InterruptsMitsubish
Page 71 and 72: Watchdog TimerMitsubishi microcompu
Page 73 and 74: DMACMitsubishi microcomputersM16C /
Page 83 and 84: TimerMitsubishi microcomputersM16C
Page 85 and 86: Timer AMitsubishi microcomputersM16
Page 95 and 96: Timer BMitsubishi microcomputersM16
Page 101 and 102: Timers’ functions for three-phase
Page 109: Timers’ functions for three-phase
Page 113 and 114: Serial I/OMitsubishi microcomputers
Page 123 and 124: Clock synchronous serial I/O modeMi
Page 129 and 130: Clock asynchronous serial I/O (UART
Page 141 and 142: UART2 Special Mode RegisterMitsubis
Page 143 and 144: UART2 Special Mode RegisterMitsubis
Page 145 and 146: UART2 Special Mode Register 2Mitsub
Page 147 and 148: UART2 Special Mode Register 2Mitsub
Page 149 and 150: S I/O3, 4Mitsubishi microcomputersM
Page 151 and 152: S I/O3, 4Mitsubishi microcomputersM
Page 153 and 154: A-D ConverterMitsubishi microcomput
Page 161 and 162:
A-D ConverterMitsubishi microcomput
Page 163 and 164:
D-A ConverterMitsubishi microcomput
Page 165 and 166:
CRCMitsubishi microcomputersM16C /
Page 167 and 168:
Programmable I/O PortMitsubishi mic
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Usage precautionMitsubishi microcom
Page 179 and 180:
Usage precautionMitsubishi microcom
Page 181 and 182:
Mitsubishi microcomputersM16C / 62
Page 183 and 184:
Operating maximum frequency [MHZ]Op
Page 185 and 186:
Electrical characteristics (Vcc = 5
Page 187 and 188:
Timing (VCC=5V)Mitsubishi microcomp
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Timing (Vcc = 5V)Mitsubishi microco
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Electrical characteristics (Vcc = 3
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
IssuancesignatureReceiptMitsubishi
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
Page 223 and 224:
Page 225 and 226:
Page 227 and 228:
Page 229 and 230:
Page 231 and 232:
Page 233 and 234:
Page 235 and 236:
Operating maximum frequency [MHZ]De
Page 237 and 238:
CPU Rewrite Mode (Flash Memory Vers
Page 239 and 240:
Page 241 and 242:
Page 243 and 244:
Page 245 and 246:
Page 247 and 248:
Page 249 and 250:
Page 251 and 252:
Functions To Inhibit Rewriting (Fla
Page 253 and 254:
Appendix Standard Serial I/O Mode (
Page 255 and 256:
CNVSSRESETP93/DA0/TB3INP94/DA1/TB4I
Page 257 and 258:
Page 259 and 260:
Page 261 and 262:
Page 263 and 264:
Page 265 and 266:
Page 267 and 268:
Page 269 and 270:
Page 271 and 272:
Page 273 and 274:
272Mitsubishi microcomputersM16C /
Page 275 and 276:
Page 277:
MITSUBISHI SEMICONDUCTORSM16C/62 Gr
show all

M16C/62 Group DATASHEET

Create successful ePaper yourself

Delete template?

Save as template?