DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 414

• Manufacturer Part Number: DF3048BVX25V
• Description: MCU 3/5V 128K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3048BVX25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• 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: -

Section 10 16-Bit Integrated Timer Unit (ITU)
Example of Phase Counting Mode
Figure 10.44 shows an example of operations in phase counting mode. Table 10.9 lists the up-
counting and down-counting conditions for TCNT2.
In phase counting mode both the rising and falling edges of TCLKA and TCLKB are counted. The
phase difference between TCLKA and TCLKB must be at least 1.5 states, the phase overlap must
also be at least 1.5 states, and the pulse width must be at least 2.5 states. See figure 10.45.
Table 10.9 Up/Down Counting Conditions
Counting Direction
TCLKB
TCLKA
Rev. 3.00 Sep 27, 2006 page 386 of 872
REJ09B0325-0300
TCLKA
TCLKB
TCLKB
TCLKA
Figure 10.45 Phase Difference, Overlap, and Pulse Width in Phase Counting Mode
TCNT2 value
Phase
difference
Figure 10.44 Operation in Phase Counting Mode (Example)
Counting up
Overlap
Up-Counting
Low
Phase
difference
High
Overlap
High
Pulse width
Low
Phase difference and overlap:
Pulse width:
Down-Counting
High
Low
Pulse width
Counting down
Low
at least 1.5 states
at least 2.5 states
High
Time