D12674RVFQ33D Renesas Electronics America, D12674RVFQ33D Datasheet - Page 704

• Manufacturer Part Number: D12674RVFQ33D
• Description: MCU 3V 0K I-TEMP 144-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of D12674RVFQ33D

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 33MHz
• Connectivity: IrDA, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 103
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: HD6412674RVFQ33D; HD6412674RVFQ33D

Section 14 Watchdog Timer
Bit
4, 3
2
1
0
Note:
Rev. 3.00 Mar 17, 2006 page 652 of 926
REJ09B0283-0300
Bit Name
—
CKS2
CKS1
CKS0
* Only a write of 0 is permitted, to clear the flag.
Initial Value
All 1
0
0
0
R/W
—
R/W
R/W
R/W
Description
Reserved
These bits are always read as 1 and cannot be
modified.
Clock Select 2 to 0
Selects the clock source to be input to TCNT. The
overflow frequency for
parentheses.
000: Clock /2 (frequency: 25.6 s)
001: Clock /64 (frequency: 819.2 s)
010: Clock /128 (frequency: 1.6 ms)
011: Clock /512 (frequency: 6.6 ms)
100: Clock /2048 (frequency: 26.2 ms)
101: Clock /8192 (frequency: 104.9 ms)
110: Clock /32768 (frequency: 419.4 ms)
111: Clock /131072 (frequency: 1.68 s)
= 20 MHz is enclosed in