DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 427

• Manufacturer Part Number: DF2345TE20
• Description: MCU 5V 128K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2345TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 71
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 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: -
• Other names: HD64F2345TE20; HD64F2345TE20

11.2.3
RSTCSR is an 8-bit readable/writable * register that controls the generation of the internal reset
signal when TCNT overflows, and selects the type of internal reset signal.
RSTCSR is initialized to H'1F by a reset signal from the RES pin, but not by the WDT internal
reset signal caused by overflows.
Note: * The method for writing to RSTCSR is different from that for general registers to
Bit 7—Watchdog Overflow Flag (WOVF): Indicates that TCNT has overflowed (changed from
H'FF to H'00) during watchdog timer operation. This bit is not set in interval timer mode.
Bit 7
WOVF
0
1
Bit
Initial value
R/W
Note: * Can only be written with 0 for flag clearing.
Reset Control/Status Register (RSTCSR)
prevent inadvertent overwriting. For details see section 11.2.4, Notes on Register
Access.
Description
[Clearing condition]
Cleared by reading RSTCSR when WOVF = 1, then writing 0 to WOVF
[Setting condition]
Set when TCNT overflows (changed from H'FF to H'00) during watchdog timer
operation
:
:
:
R/(W) *
WOVF
7
0
RSTE
R/W
6
0
RSTS
R/W
5
0
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—
4
1
Rev. 4.00 Feb 15, 2006 page 401 of 900
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—
3
1
Section 11 Watchdog Timer
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—
2
1
REJ09B0291-0400
—
—
1
1
(Initial value)
—
—
0
1