D13008VXI25V Renesas Electronics America, D13008VXI25V Datasheet - Page 284

• Manufacturer Part Number: D13008VXI25V
• Description: MCU 3V 0K I-TEMP PB-FREE 100-TQF
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of D13008VXI25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: PWM, WDT
• Number Of I /o: 35
• Program Memory Type: ROMless
• 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: -
• Program Memory Size: -

8. 16-Bit Timer
Note on Waveform Period Setting: When a counter is cleared by compare match, the counter is
cleared in the last state at which the 16TCNT value matches the general register value, at the time
when this value would normally be updated to the next count. The actual counter frequency is
therefore given by the following formula:
Note on Writes in Synchronized Operation: When channels are synchronized, if a 16TCNT
value is modified by byte write access, all 16 bits of all synchronized counters assume the same
value as the counter that was addressed.
(Example) When channels 1 and 2 are synchronized
Rev.4.00 Aug. 20, 2007 Page 238 of 638
REJ09B0395-0400
• Byte write to channel 1 or byte write to channel 2
• Word write to channel 1 or word write to channel 2
16TCNT1
16TCNT2
16TCNT1
16TCNT2
f =
(f: counter frequency. φ: system clock frequency. N: value set in general register.)
(N + 1)
φ
Upper byte Lower byte
Upper byte Lower byte
W
W
Y
Y
X
Z
X
Z
Write A to upper byte
of channel 1
Write A to lower byte
of channel 2
Write AB word to
channel 1 or 2
16TCNT1
16TCNT2
16TCNT1
16TCNT2
16TCNT1
16TCNT2
Upper byte Lower byte
Upper byte Lower byte
Upper byte Lower byte
A
A
Y
Y
A
A
X
X
A
A
B
B