R8A77850BDBGV#RD0Z Renesas Electronics America, R8A77850BDBGV#RD0Z Datasheet - Page 792

• Manufacturer Part Number: R8A77850BDBGV#RD0Z
• Description: IC SUPERH MPU ROMLESS 436BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R8A77850BDBGV#RD0Z

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 600MHz
• Connectivity: Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
• Peripherals: DMA, POR, WDT
• Number Of I /o: 108
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1 V ~ 1.2 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 436-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

16. Watchdog Timer and Reset (WDT)
Figure 16.1 is a block diagram of the WDT.
Rev.1.00 Jan. 10, 2008 Page 760 of 1658
REJ09B0261-0100
PRESET
Legend:
WDTCNT:
WDTST:
WDTBCNT: Watchdog timer base counter
WDTBST:
WDTCSR: Watchdog timer control/status register
Comparator
WDTCSR
Watchdog timer counter
Watchdog timer stop time register
Watchdog timer base stop time register
Watchdog Timer and Reset module (WDT)
WDTCNT
WDTST
Figure 16.1 Block Diagram of WDT
Reset control
control circuit
Interrupt
circuit
Count-up signal
Comparator
Internal reset request
Interrupt request
WDTBCNT
WDTBST
Peripheral clock
INTC
CPG
(Pck)
2
STATUS[1:0]
MRESETOUT