HD6417706F133 Renesas Electronics America, HD6417706F133 Datasheet - Page 406
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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Manufacturer:
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Section 13 Realtime Clock (RTC)
13.4
13.4.1
All the registers should be set after the power is turned on.
13.4.2
Figures 13.2(a) and 13.2(b) show how to set the time after stopping the clock. This procedure can
be used to set the entire calendar and clock function. It can be programmed easily.
Usage Notes
1. Initialization Timing for 64 Hz Counter (R64CNT)
2. Incrementing RSECCNT by Initializing R64CNT
Rev. 5.00 May 29, 2006 page 356 of 698
REJ09B0146-0500
If it is necessary, after initializing the counter by means of the RESET bit in the RTC’s RCR2
register, to confirm that the change has taken effect by reading the R64CNT value, wait at least
107 µs after setting the RESET bit to 1 before reading the R64CNT counter. Note that the
divider circuit (RTC prescaler) is also initialized when the RESET bit is set to 1.
Either method (a) or method (b) below may be used.
(a) After setting the RESET bit to 1 and confirming that R64CNT has been initialized, set the
(b) Set the START bit to 1 and the RESET bit to 1 at the same time. This process is shown in
START bit to 1. This process is shown in figure 13.2(a).
figure 13.2(b). Note that the processing indicated by the asterisk (*) in figure 13.2(b) may
be omitted if nothing is written to the RCR2 register during an interval of approximately
107 µs after the START bit is set to 1.
RTC Operation
Initial Settings of Registers after Power-On
Setting the Time
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