HD6417708RF100A Renesas Electronics America, HD6417708RF100A Datasheet - Page 346
HD6417708RF100A
Manufacturer Part Number
HD6417708RF100A
Description
IC SUPERH MPU ROMLESS 144LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.HD6417708SF60V.pdf
(635 pages)
Specifications of HD6417708RF100A
Core Processor
SH-2
Core Size
32-Bit
Speed
100MHz
Connectivity
EBI/EMI, SCI, SmartCard
Peripherals
POR, WDT
Number Of I /o
8
Program Memory Type
ROMless
Voltage - Supply (vcc/vdd)
3.15 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
-
Available stocks
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12.2.7
The month counter (RMONCNT) is an 8-bit read/write register used for setting/counting in the
BCD-coded month section of the RTC. The count operation is performed by a carry for each
month of the date counter.
The range that can be set is 00–12 (decimal). Errant operation will result if any other value is set.
Carry out write processing after halting the count operation with the START bit in RCR2, or
perform a write using the carry flag as shown in figure 12.2.
RMONCNT is not initialized by a power-on reset or manual reset, or in standby mode.
12.2.8
The year counter (RYRCNT) is an 8-bit read/write register used for setting/counting in the BCD-
coded year section of the RTC. The least significant 2 digits of the western calendar year are
displayed. The count operation is performed by a carry for each year of the month counter.
The range that can be set is 00–99 (decimal). Errant operation will result if any other value is set.
Carry out write processing after halting the count operation with the START bit in RCR2, or
perform a write using the carry flag as shown in figure 12.2.
RYRCNT is not initialized by a power-on reset or manual reset, or in standby mode.
Leap years are recognized by dividing the year counter value by 4 and obtaining a fractional result
of 0.
326
Initial value:
Initial value:
Bit name:
Bit name:
Month Counter (RMONCNT)
Year Counter (RYRCNT)
R/W:
R/W:
Bit:
Bit:
R/W
—
—
7
0
R
7
R/W
—
—
6
0
R
6
10 years
R/W
—
—
5
0
R
5
months
R/W
R/W
10
—
—
4
4
R/W
R/W
—
—
3
3
R/W
R/W
—
—
2
2
1 month
1 year
R/W
R/W
—
—
1
1
R/W
R/W
—
—
0
0
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