DF2117VT20V Renesas Electronics America, DF2117VT20V Datasheet - Page 385

• 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: -

12.4
The TDP operates in timer mode or cycle measurement mode. After a reset, the TDP is in timer
mode.
12.4.1
When the TDPMDS bit in TDPCR1 is cleared to 0, the TDP operates in timer mode.
(1)
The TDP operates as a free-running counter in timer mode. The TDP starts counting up when the
CST bit in TDPCR1 is set to 1. When TDPCNT overflows (H'FFFF changes to H'0000), the OVF
bit in TDPCSR is set to 1 and an interrupt request is generated if the OVIE bit in TDPIER is 1.
Figure 12.2 shows an example of free-running counter operation. In addition, figure 12.3 shows
TDPCNT count timing for external clock operation. Note that the external clock requires a pulse
width of at least 1.5 cycles. The counter will not operate correctly if the pulses are narrower than
this.
Counter Operation
φ
TDPCKI
TDPCNT
input clock
TDPCNT
φ
φ/4
TDPCNT
input clock
TDPCNT
Operation
Timer Mode
Figure 12.3 Count Timing of External Clock Operation (Falling Edges)
Figure 12.2 Example of Free-Running Counter Operation
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