HD64F2239TF20I Renesas Electronics America, HD64F2239TF20I Datasheet - Page 536
HD64F2239TF20I
Manufacturer Part Number
HD64F2239TF20I
Description
MCU 3V 384K I-TEMP 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Datasheet
1.DF2238RFA6V.pdf
(1048 pages)
Specifications of HD64F2239TF20I
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
72
Program Memory Size
384KB (384K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F2239TF20I
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 13 Watchdog Timer (WDT)
13.4.2
To use the WDT as a watchdog timer, set the WT/IT and TME bits in TCSR to 1.
When the WDT is used as an interval timer, an interval timer interrupt (WOVI) is generated each
time the TCNT overflows. (The NMI interrupt is not generated.) Therefore, an interrupt can be
generated at intervals.
Rev. 6.00 Mar. 18, 2010 Page 474 of 982
REJ09B0054-0600
Interval Timer Mode
Legend:
WT/IT:
TME:
WOVF:
Note: * In the case of WDT_0, the internal reset signal is generated only when the RSTE bit is set to 1.
Internal reset signal *
Timer mode select bit
Timer enable bit
Overflow flag
In the case of WDT_1,either the internal reset or the NMI interrupt is generated.
H'FF
H'00
TCNT value
Figure 13.2 Watchdog Timer Mode Operation
WT/IT=1
TME=1
Write H'00'
to TCNT
internal reset is
generated
Overflow
WOVF=1
518 system clock (WDT0)
515/516 system clock (WDT1)
WT/IT=1
TME=1
Write H'00'
to TCNT
Time
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