HD6417720BP133BV Renesas Electronics America, HD6417720BP133BV Datasheet - Page 532

• Manufacturer Part Number: HD6417720BP133BV
• Description: SH3-DSP, WITH USB AND LCDC, PB-F
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417720BP133BV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: FIFO, I²C, IrDA, MMC, SCI, SD, SIO, SIM, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 117
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Section 12 Watchdog Timer (WDT)
Figures 12.1 shows a block diagram of the WDT.
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cancellation
[Legend]
WTCSR:
WTCNT:
Interrupt
Standby
Internal
request
request
reset
Watchdog timer control/status register
Watchdog timer counter
Standby
Interrupt
control
control
control
Reset
Figure 12.1 Block Diagram of WDT
WTCSR
Clock selection
Overflow
Bus interface
WDT
WTCNT
Clock selector
Divider
Clock
SH7720 Group, SH7721 Group
R01UH0083EJ0400 Rev. 4.00
Standby
mode
Peripheral
clock
Sep 21, 2010