HD64F3026X25 Renesas Electronics America, HD64F3026X25 Datasheet - Page 347

• Manufacturer Part Number: HD64F3026X25
• Description: MCU 3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3026X25

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: Contains lead / RoHS non-compliant
• Eeprom Size: -

9.7.8
If compare matches A and B occur at the same time, the 8-bit timer operates according to the
relative priority of the output states set for compare match A and compare match B, as shown in
Table 9.7.
Table 9.7
9.7.9
Switching internal clock sources may cause 8TCNT to increment, depending on the switchover
timing. Table 9.8 shows the relation between the time of the switchover (by writing to bits CKS1
and CKS0) and the operation of 8TCNT.
The 8TCNT input clock is generated from the internal clock source by detecting the rising edge of
the internal clock. If a switchover is made from a low clock source to a high clock source, as in
case No. 3 in Table 9.8, the switchover will be regarded as a falling edge, a 8TCNT clock pulse
will be generated, and 8TCNT will be incremented.
8TCNT may also be incremented when switching between internal and external clocks.
Output Setting
Toggle output
1 output
0 output
No change
Contention between Compare Matches A and B
8TCNT Operation and Internal Clock Source Switchover
Timer Output Priority Order
Priority
High
Low
Rev. 2.00 Sep 20, 2005 page 307 of 800
Section 9 8-Bit Timers
REJ09B0260-0200