D6417729RHF200BV Renesas Electronics America, D6417729RHF200BV Datasheet - Page 511

• Manufacturer Part Number: D6417729RHF200BV
• Description: IC SUPER H MPU ROMLESS 208QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of D6417729RHF200BV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, FIFO, IrDA, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 96
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.85 V ~ 2.15 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 208-QFP Exposed Pad, 208-eQFP, 208-HQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

14.2.15 RTC Control Register 1 (RCR1)
The RTC control register 1 (RCR1) is an 8-bit readable/writable register that affects carry flags
and alarm flags. It also selects whether to generate interrupts for each flag. Because flags are
sometimes set after an operand read, do not use this register in read-modify-write processing.
RCR1 is initialized to H'00 by a power-on reset. In a manual reset, all bits are initialized to 0
except for the CF flag, which is undefined. When using the CF flag, it must be initialized
beforehand. This register is not initialized in standby mode.
Bit 7—Carry Flag (CF): Status flag that indicates that a carry has occurred. CF is set to 1 when a
count-up to R64CNT or RSECCNT occurs. A count register value read at this time cannot be
guaranteed; another read is required.
Bits 6, 5, 2, and 1—Reserved: These bits are always read as 0. The write value should always be
0.
Bit 4—Carry Interrupt Enable Flag (CIE): When the carry flag (CF) is set to 1, the CIE bit
enables interrupts.
Bit 7: CF
0
1
Bit 4: CIE
0
1
Initial value:
R/W:
Bit:
Description
No count up of R64CNT or RSECCNT
Clearing condition: When 0 is written to CF
Count up of R64CNT or RSECCNT
Setting condition: When 1 is written to CF
Description
A carry interrupt is not generated when the CF flag is set to 1
A carry interrupt is generated when the CF flag is set to 1
R/W
CF
7
0
—
R
6
0
—
R
5
0
R/W
CIE
4
0
R/W
AIE
3
0
Rev. 5.0, 09/03, page 463 of 806
—
R
2
0
—
R
1
0
(Initial value)
(Initial value)
R/W
AF
0
0