DF2117VT20V Renesas Electronics America, DF2117VT20V Datasheet - Page 309

• Manufacturer Part Number: DF2117VT20V
• Description: MCU 16BIT FLASH 3V 160K 144-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2117VT20V

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: FIFO, I²C, LPC, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 112
• Program Memory Size: 160KB (160K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-TQFP, 144-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

10.5
10.5.1
Each channel has a TCNT and TGR. TCNT performs up-counting, and is also capable of free-
running operation, synchronous counting, and external event counting. Each TGR can be used as
an input capture register or output compare register.
(1)
When one of bits CST0 to CST2 is set to 1 in TSTR, the TCNT counter for the corresponding
channel starts counting. TCNT can operate as a free-running counter, periodic counter, and so on.
(a)
Figure 10.6 shows an example of the count operation setting procedure.
Counter Operation
Example of count operation setting procedure
Select output compare register
Select counter clearing source
Operation
Basic Functions
Start count operation
Select counter clock
Operation selection
<Periodic counter>
Periodic counter
Set period
Figure 10.6 Example of Counter Operation Setting Procedure
[1]
[2]
[3]
[4]
[5]
<Free-running counter>
Free-running counter
Start count operation
Rev. 2.00 Sep. 28, 2009 Page 267 of 994
[1]
[2]
[3]
[4]
[5]
Select the counter clock with bits
TPSC2 to TPSC0 inTCR.
At the same time, select the input
clock edge with bits CKEG1 and
CKEG0 in TCR.
For periodic counter operation,
select the TGR to be used as the
TCNT clearing source with bits
CCLR2 to CCLR0 in TCR.
Designate the TGR selected in [2]
as an output compare register by
means of TIOR.
Set the periodic counter cycle in
the TGR selected in [2].
Set the CST bit in TSTR to 1 to
start the counter operation.
REJ09B0452-0200