DF2367VF33 Renesas Electronics America, DF2367VF33 Datasheet - Page 592

• Manufacturer Part Number: DF2367VF33
• Description: MCU 3V 384K 128-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2367VF33

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 33MHz
• Connectivity: I²C, IrDA, SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 84
• Program Memory Size: 384KB (384K x 8)
• Program Memory Type: FLASH
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2367VF33; HD64F2367VF33

Section 13 Watchdog Timer
Note:
Rev.6.00 Mar. 18, 2009 Page 532 of 980
REJ09B0050-0600
Bit
6
5
4, 3
2
1
0
*
Bit Name
WT/IT
TME
—
CKS2
CKS1
CKS0
Only a write of 0 is permitted, to clear the flag.
Initial Value
0
0
All 1
0
0
0
R/W
R/W
R/W
—
R/W
R/W
R/W
Description
Timer Mode Select
Selects whether the WDT is used as a watchdog
timer or interval timer.
0: Interval timer mode
1: Watchdog timer mode
Timer Enable
When this bit is set to 1, TCNT starts counting.
When this bit is cleared, TCNT stops counting
and is initialized to H'00.
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 φ = 20 MHz is
enclosed in parentheses.
000: Clock φ/2 (frequency: 25.6 μs)
001: Clock φ/64 (frequency: 819.2 μs)
010: Clock φ/128 (frequency: 1.6 ms)
011: Clock φ/512 (frequency: 6.6 ms)
100: Clock φ/2048 (frequency: 26.2 ms)
101: Clock φ/8192 (frequency: 104.9 ms)
110: Clock φ/32768 (frequency: 419.4 ms)
111: Clock φ/131072 (frequency: 1.68 s)
When TCNT overflows, an interval timer
interrupt (WOVI) is requested.
When TCNT overflows, the WDTOVF signal is
output.