HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 286

• Manufacturer Part Number: HD6477021X20V
• Description: MCU 5V 32K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7020r

Specifications of HD6477021X20V

• Core Processor: SH-1
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

At the point where the up-count/down-count changes in the complementary PWM mode, TCNT3
and TCNT4 will overshoot and undershoot, respectively. When this occurs, the setting conditions
for the IMFA bit of channel 3 and the overflow flag (OVF) of channel 4 are different from usual.
Transfer conditions for the buffer also differ. The timing is as shown in figures 10.36 and 10.37.
268 RENESAS
TCNT3, TCNT4 value
TCNT3, TCNT4 value
TIOCA3
TIOCB3
TIOCA3
TIOCB3
GRA3
GRB3
GRA3
GRB3
Figure 10.35 Complementary PWM Mode Operation Example 2
(b) With 100% duty
(a) With 0% duty
Duty 100%
Duty 0%
Time
Time