HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 363

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

Figure 10-30 shows examples of the output of PWM waveforms with duty cycles of 0% and
100%. If the counter is cleared by compare match with GRB, and GRA is set to a higher value
than GRB, the duty cycle is 0%. If the counter is cleared by compare match with GRA, and GRB
is set to a higher value than GRA, the duty cycle is 100%.
GRB
GRA
H'0000
TIOCA
GRA
GRB
H'0000
TIOCA
TCNT value
TCNT value
Figure 10-30 PWM Mode (Example 2)
Write to GRA
Write to GRB
b. 100% duty cycle
Counter cleared by compare match with GRB
Counter cleared by compare match with GRA
a. 0% duty cycle
351
Write to GRA
Write to GRB
Time
Time