HD6413007F20 Renesas Electronics America, HD6413007F20 Datasheet - Page 454

• 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: -

12. Watchdog Timer
12.5
Contention between TCNT Write and Increment: If a timer counter clock pulse is generated
during the T
incremented. See figure 12.8.
Changing CKS2 to CKS0 Bit: Halt TCNT by clearing the TME bit to 0 in TCSR before
changing the values of bits CKS2 to CKS0.
Rev.5.00 Sep. 12, 2007 Page 424 of 764
REJ09B0396-0500
Usage Notes
3
state of a write cycle to TCNT, the write takes priority and the timer count is not
φ
TCNT
Internal write
signal
TCNT input
clock
TCNT
Figure 12.8 Contention between TCNT Write and Count up
T
CPU: TCNT write cycle
1
N
T
2
T
3
M
Counter write data