HD64F2318VTE25 Renesas Electronics America, HD64F2318VTE25 Datasheet - Page 463
HD64F2318VTE25
Manufacturer Part Number
HD64F2318VTE25
Description
IC H8S MCU FLASH 256K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of HD64F2318VTE25
Core Processor
H8S/2000
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
71
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K 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
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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11.5.2
If bits CKS2 to CKS0 in TCSR are written to while the WDT is operating, errors may occur in the
incrementation. Software must stop the watchdog timer (by clearing the TME bit to 0) before
changing the value of bits CKS2 to CKS0.
11.5.3
If the mode is switched from watchdog timer to interval timer, or vice versa, while the WDT is
operating, errors may occur in the incrementation. Software must stop the watchdog timer (by
clearing the TME bit to 0) before switching the mode.
11.5.4
If the WDTOVF output signal * is input to the RES pin of the chip, the chip will not be initialized
correctly. Make sure that the WDTOVF signal * is not input logically to the RES pin. To reset the
entire system by means of the WDTOVF signal * , use the circuit shown in figure 11.9.
Note: * The WDTOVF output function is not available in the F-ZTAT versions.
Note: * The WDTOVF output function is not available in F-ZTAT versions.
Changing Value of CKS2 to CKS0
Switching between Watchdog Timer Mode and Interval Timer Mode
System Reset by WDTOVF Signal *
Figure 11.9 Circuit for System Reset by WDTOVF Signal (Example)
Reset signal to entire system
Reset input
Rev.7.00 Feb. 14, 2007 page 429 of 1108
Section 11 Watchdog Timer
Chip
REJ09B0089-0700
WDTOVF *
RES
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