HD6413007F20 Renesas Electronics America, HD6413007F20 Datasheet - Page 398

• Manufacturer Part Number: HD6413007F20
• Description: IC H8 MCU ROMLESS 5V 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD6413007F20

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 35
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

10. 8-Bit Timers
10.4
10.4.1
8TCNT is incremented by input clock pulses (either internal or external).
Internal Clock: Three different internal clock signals (φ/8, φ/64, or φ/8192) divided from the
system clock (φ) can be selected by setting bits CKS2 to CKS0 in 8TCR. Figure 10.8 shows the
count timing.
Note: Even when the same internal clock is selected for both the 16- and 8-bit timers, they do
External Clock: Three incrementation methods can be selected by setting bits CKS2 to CKS0 in
8TCR: on the rising edge, the falling edge, and both rising and falling edges.
The pulse width of the external clock signal must be at least 1.5 serial clocks when a single edge is
selected, and at least 2.5 system clocks when both edges are selected. Shorter pulses will not be
counted correctly.
Rev.5.00 Sep. 12, 2007 Page 368 of 764
REJ09B0396-0500
8TCNT input clock
Internal clock
8TCNT
not operate in the same manner because the count-up edge differs.
φ
Operation
8TCNT Count Timing
Figure 10.8 Count Timing for Internal Clock Input
N – 1
N
N + 1