HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 291

• 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: -

Phase Counting Operation: Figure 10.43 shows an example of phase counting mode operation.
Table 10.16 lists the upcounting and downcounting conditions for TCNT2. The ITU counts on
both rise and fall edges of TCLKA and TCLKB. The phase differential and overlap of TCLKA
and TCLKB must be 1.5 cycles or more and the pulse width must be 2.5 cycles or more.
Table 10.16 Up/Down Counting Conditions
Counting
Direction
TCLKB
TCLKA
TCLKB
TCLKA
TCNT2 value
Figure 10.42 Procedure for Selecting the Phase Counting Mode
Increment
Rising
Low
Increment
Figure 10.43 Phase Counting Mode Operation
High
Rising
Select phase counting mode
Select flag setting condition
Phase counting mode
Phase counting mode
Falling
High
Start counting
Falling
Low
TCNT2
Decrement
Rising
High
(1)
(2)
(3)
High
Falling
Decrement
Low
Falling
RENESAS 273
Low
Rising
Time