D12312SVTE25 Renesas Electronics America, D12312SVTE25 Datasheet - Page 451

• Manufacturer Part Number: D12312SVTE25
• Description: MCU 3V 0K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of D12312SVTE25

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Type: ROMless
• 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: -
• Program Memory Size: -
• Other names: HD6412312SVTE25; HD6412312SVTE25

11.1.3
Table 11.1 describes the WDT output pin.
Table 11.1 WDT Pin
Name
Watchdog timer overflow
Note: * The WDTOVF function is not available in the F-ZTAT versions.
11.1.4
The WDT has three registers, as summarized in table 11.2. These registers control clock selection,
WDT mode switching, and the reset signal.
Table 11.2 WDT Registers
Name
Timer control/status register
Timer counter
Reset control/status register
Notes: 1. Lower 16 bits of the address.
2. For details of write operations, see section 11.2.4, Notes on Register Access.
3. Only a write of 0 is permitted to bit 7, to clear the flag.
Pin Configuration
Register Configuration
Symbol
WDTOVF * Output
Abbreviation
TCSR
TCNT
RSTCSR
I/O
R/W
R/(W) *
R/W
R/(W) *
Function
Outputs counter overflow signal in watchdog
timer mode
Rev.7.00 Feb. 14, 2007 page 417 of 1108
3
3
Initial Value
H'18
H'00
H'1F
Section 11 Watchdog Timer
Write *
H'FFBC
H'FFBC
H'FFBE
REJ09B0089-0700
Address *
2
Read
H'FFBC
H'FFBD
H'FFBF
1