HD6417751RF240V Renesas Electronics America, HD6417751RF240V Datasheet - Page 406

• Manufacturer Part Number: HD6417751RF240V
• Description: MPU 1.5/3.3V 0K PB-FREE 256-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417751RF240V

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 240MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 39
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-QFP Exposed Pad, 256-eQFP, 256-HQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

11. Realtime Clock (RTC)
Bit 7—Periodic Interrupt Flag (PEF): Indicates interrupt generation at the interval specified by
bits PES2–PES0. When this flag is set to 1, a periodic interrupt is generated.
Bit 7: PEF
0
1
Bits 6 to 4—Periodic Interrupt Enable (PES2–PES0): These bits specify the period for periodic
interrupts.
Bit 6: PES2
0
1
Bit 3—Oscillation Circuit Enable (RTCEN): Controls the operation of the RTC crystal
oscillation circuit.
Bit 3: RTCEN
0
1
Rev.4.00 Oct. 10, 2008 Page 306 of 1122
REJ09B0370-0400
Bit 5: PES1
0
1
0
1
Description
Interrupt is not generated at interval specified by bits PES2–PES0
[Clearing condition]
When 0 is written to PEF
Interrupt is generated at interval specified by bits PES2–PES0
[Setting conditions]
•
•
Description
RTC crystal oscillation circuit halted
RTC crystal oscillation circuit operating
Generation of interrupt at interval specified by bits PES2–PES0
When 1 is written to PEF
Bit 4: PES0
0
1
0
1
0
1
0
1
Description
No periodic interrupt generation
Periodic interrupt generated at 1/256-second intervals
Periodic interrupt generated at 1/64-second intervals
Periodic interrupt generated at 1/16-second intervals
Periodic interrupt generated at 1/4-second intervals
Periodic interrupt generated at 1/2-second intervals
Periodic interrupt generated at 1-second intervals
Periodic interrupt generated at 2-second intervals
(Initial value)
(Initial value)