HD6417708SF60 Renesas Electronics America, HD6417708SF60 Datasheet - Page 352

• Manufacturer Part Number: HD6417708SF60
• Description: IC SUPERH MPU ROMLESS 144LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417708SF60

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 60MHz
• Connectivity: EBI/EMI, SCI, SmartCard
• Peripherals: POR, WDT
• Number Of I /o: 8
• Program Memory Type: ROMless
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Ram Size: -
• Program Memory Size: -
• Data Converters: -

12.2.16 RTC Control Register 2 (RCR2)
The RTC control register 2 (RCR2) is an 8-bit read/write register for periodic interrupt control, 30-
second adjustment ADJ, divider circuit RESET, and RTC count start/stop control. It is initialized
to H'09 by a power-on reset. It is not initialized by a manual reset or in standby mode, and retains
its contents.
Bit 7—Periodic Interrupt Flag (PEF): Indicates interrupt generation with the period designated by
the PES bits. When set to 1, PEF generates periodic interrupts.
Bit 7: PEF
0
1
Bits 6–4—Periodic Interrupt Flags (PES2–PES0): These bits specify the periodic interrupt.
Bit 6: PES2
0
1
Bit 3—RTCEN: Controls the operation of the crystal oscillator for the RTC.
Bit 3: RTCEN
0
1
332
Initial value:
Bit name:
R/W:
Bit:
Bit 5: PES1
0
1
0
1
Description
Interrupts not generated with the period designated by the PES bits.
Clearing condition: When 0 is written to PEF
Interrupts generated with the period designated by the PES bits.
Setting condition: When 1 is written to PEF
Description
Halts the crystal oscillator for the RTC.
Runs the crystal oscillator for the RTC.
PEF
R/W
7
0
Bit 4: PES0
0
1
0
1
0
1
0
1
PES2
R/W
6
0
PES1
R/W
5
0
Description
No periodic interrupts generated (Initial value)
Periodic interrupt generated every 1/256 second
Periodic interrupt generated every 1/64 second
Periodic interrupt generated every 1/16 second
Periodic interrupt generated every 1/4 second
Periodic interrupt generated every 1/2 second
Periodic interrupt generated every 1 second
Periodic interrupt generated every 2 seconds
PES0
R/W
4
0
RTCEN
R/W
3
1
ADJ
R/W
2
0
RESET START
R/W
1
0
(Initial value)
(Initial value)
R/W
0
1