HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 232

• Manufacturer Part Number: HD64F3437TFI16V
• Description: MCU FLASH 60K 100-TQFP
• Manufacturer: Renesas Electronics America

Specifications of HD64F3437TFI16V

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

External Clock: If external clock input (TMCI) is selected, the timer counter can increment on
the rising edge, the falling edge, or both edges of the external clock signal. Figure 9.3 shows
incrementation on both edges of the external clock signal.
The external clock pulse width must be at least 1.5 system clock (ø) periods for incrementation on
a single edge, and at least 2.5 system clock periods for incrementation on both edges. The counter
will not increment correctly if the pulse width is shorter than these values.
200
ø
External clock
source (TMCI)
TCNT clock
pulse
TCNT
Figure 9.3 Count Timing for External Clock Input
N – 1
N
N + 1