DF2266TF13V Renesas Electronics America, DF2266TF13V Datasheet - Page 344

• Manufacturer Part Number: DF2266TF13V
• Description: IC H8S/2266 MCU FLASH 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2266TF13V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 13MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: LCD, POR, PWM, WDT
• Number Of I /o: 67
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 12 Watchdog Timer (WDT)
Notes: 1. Only 0 can be written, for flag clearing.
Rev. 5.00 Sep. 01, 2009 Page 292 of 656
REJ09B0071-0500
6
Bit
5
4, 3
2
1
0
2. When the OVF flag is polled with the interval timer interrupt disabled, read the OVF bit
3. The overflow period is the time from when TCNT starts counting up from H'00 until
Bit Name
WT/IT
TME
⎯
CKS2
CKS1
CKS0
while it is 1 at least twice.
overflow occurs.
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 (internal reset selectable)
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 0 to 2
Selects the clock source to be input to TCNT. The
overflow frequency *
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)
(interval timer interrupt (WOVI) is requested to CPU)
3
for φ = 20 MHz is enclosed in