HD6417727F100C Renesas Electronics America, HD6417727F100C Datasheet - Page 332

• Manufacturer Part Number: HD6417727F100C
• Description: IC SUPERH MPU ROMLESS 240QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417727F100C

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 100MHz
• Connectivity: FIFO, SCI, SIO, SmartCard, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 104
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.6 V ~ 2.05 V
• Data Converters: A/D 6x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 240-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

Section 10 On-Chip Oscillation Circuits
Bit 4—Watchdog Timer Overflow (WOVF): Indicates that the WTCNT has overflowed in
watchdog timer mode. This bit is not set in interval timer mode.
Bit 4: WOVF
0
1
Bit 3—Interval Timer Overflow (IOVF): Indicates that the WTCNT has overflowed in interval
timer mode. This bit is not set in watchdog timer mode.
Bit 3: IOVF
0
1
Bits 2 to 0—Clock Select 2 to 0 (CKS2 to CKS0): These bits select the clock to be used for the
WTCNT count from the eight types obtainable by dividing the peripheral clock. The overflow
period in the table is the value when the peripheral clock (Pφ) is 15 MHz.
Bit 2: CKS2
0
1
Note: If bits CKS2 to CKS0 are modified when the WDT is running, the up-count may not be
Rev.6.00 Mar. 27, 2009 Page 274 of 1036
REJ09B0254-0600
performed correctly. Ensure that these bits are modified only when the WDT is not running.
Bit 1: CKS1
0
1
0
1
Description
No overflow
WTCNT has overflowed in watchdog timer mode
Description
No overflow
WTCNT has overflowed in interval timer mode
Bit 0: CKS0
0
1
0
1
0
1
0
1
Clock Division Ratio
1
1/4
1/16
1/32
1/64
1/256
1/1024
1/4096
(Initial value)
Overflow Period
(when Pφ = 15 MHz)
17 μs
68 μs
273 μs
546 μs
1.09 ms
4.36 ms
17.48 ms
69.91 ms
(Initial value)
(Initial value)