DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 380

• Manufacturer Part Number: DF3052BX25V
• Description: MCU 5V 512K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3052BX25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 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)
10.4.3
The synchronization function enables two or more timer counters to be synchronized by writing
the same data to them simultaneously (synchronous preset). With appropriate TCR settings, two or
more timer counters can also be cleared simultaneously (synchronous clear). Synchronization
enables additional general registers to be associated with a single time base. Synchronization can
be selected for all channels (0 to 4).
Sample Setup Procedure for Synchronization: Figure 10.26 shows a sample procedure for
setting up synchronization.
Rev. 3.00 Mar 21, 2006 page 350 of 814
REJ09B0302-0300
1. Set the SYNC bits to 1 in TSNC for the channels to be synchronized.
2. When a value is written in TCNT in one of the synchronized channels, the same value is
3. Set the CCLR1 or CCLR0 bit in TCR to have the counter cleared by compare match or input capture.
4. Set the CCLR1 and CCLR0 bits in TCR to have the counter cleared synchronously.
5. Set the STR bits in TSTR to 1 to start the synchronized counters.
Setup for synchronization
simultaneously written in TCNT in the other channels (synchronized preset).
Select synchronization
Synchronous preset
Synchronous preset
Synchronization
Write to TCNT
Figure 10.26 Setup Procedure for Synchronization (Example)
1
2
Select counter clear source
synchronized to this
Synchronous clear
Counter clear
Start counter
Clearing
channel?
Yes
3
5
No
Select counter clear source
Synchronous clear
Start counter
4
5