HD6417706F133 Renesas Electronics America, HD6417706F133 Datasheet - Page 409
HD6417706F133
Manufacturer Part Number
HD6417706F133
Description
IC SUPERH MPU ROMLESS 176LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.HD6417706F133V.pdf
(751 pages)
Specifications of HD6417706F133
Core Processor
SH-3
Core Size
32-Bit
Speed
133MHz
Connectivity
EBI/EMI, FIFO, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
103
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.75 V ~ 2.05 V
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
176-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
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13.4.4
Figure 13.4 shows how to use the alarm function.
Alarms can be generated using seconds, minutes, hours, day of the week, date, month, or any
combination of these. Set the ENB bit (bit 7) in the register on which the alarm is placed to 1, and
then set the alarm time in the lower bits. Clear the ENB bit in the register on which the alarm is
placed to 0.
When the clock and alarm times match, 1 is set in the AF bit (bit 0) in RCR1. Alarm detection can
be checked by reading this bit, but normally it is done by interrupt. If 1 is placed in the AIE bit (bit
3) in RCR1, an interrupt is generated when an alarm occurs.
Alarm Function
(wait for interrupt or
Set whether to use
Monitor alarm time
check alarm flag)
Clear alarm flag
alarm interrupt
Set alarm time
Clock running
Figure 13.4 Using the Alarm Function
Disable interrupt to prevent errorneous
interruption (AIE bit in RCR1 is cleared).
Then write 1.
Always reset, since the flag may have been
set while the alarm time was being set
(AF bit in RCR1 is cleared).
Rev. 5.00 May 29, 2006 page 359 of 698
Section 13 Realtime Clock (RTC)
REJ09B0146-0500
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