HD64F36077GHV Renesas Electronics America, HD64F36077GHV Datasheet - Page 255

• Manufacturer Part Number: HD64F36077GHV
• Description: 16BIT MCU FLASH 56K, SMD, LQFP64
• Manufacturer: Renesas Electronics America

Specifications of HD64F36077GHV

• No. Of I/o's: 47
• Ram Memory Size: 4KB
• Cpu Speed: 20MHz
• No. Of Timers: 4
• Digital Ic Case Style: LQFP
• Supply Voltage Range: 4.5V
• Core Size: 16bit
• Program Memory Size: 56KB
• Oscillator Type: External Only
• Controller Family/series: H8/300H
• Peripherals: ADC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13.4.4
In synchronous operation, the values in a number of TCNT counters can be rewritten
simultaneously (synchronous presetting). Also, a number of TCNT counters can be cleared
simultaneously by making the appropriate setting in TCR (synchronous clearing). Synchronous
operation enables GR to be increased with respect to a single time base.
Figure 13.19 shows an example of the synchronous operation setting procedure.
<Synchronous presetting>
[1] Set the SYNC bits in TMDR to 1.
[2] When a value is written to either of the TCNT counters, the same value is simultaneously written to the
[3] Set bits CCLR1 and CCLR0 in TCR to specify counter clearing by compare match/input capture.
[4] Set bits CCLR1 and CCLR0 in TCR to designate synchronous clearing for the counter clearing source.
[5] Set the STR bit in TSTR to 1 to start the count operation.
Synchronous operation
Synchronous presetting
Set synchronous
other TCNT counter.
Set TCNT
operation
selection
Synchronous Operation
Figure 13.19 Example of Synchronous Operation Setting Procedure
[1]
[2]
Start counter operation
Synchronous clearing
<Counter clearing>
source generation
clearing source
Select counter
channel?
Clearing
Yes
No
[3]
[5]
Rev. 1.00 Sep. 16, 2005 Page 225 of 490
<Synchronous clearing>
Start counter operation
clearing source
Select counter
Section 13 Timer Z
REJ09B0216-0100
[4]
[5]