HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 557

• Manufacturer Part Number: HD6417712BPV
• Description: MPU 1.5/3.3V 0K PB-FREE 256-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Ethernetr

Specifications of HD6417712BPV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, Ethernet, FIFO, SCI, SIO
• Peripherals: DMA, POR, WDT
• Number Of I /o: 24
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

15.3.8
RYRCNT is used for setting/counting in the BCD-coded year section. The 4 digits of the year are
displayed. The count operation is performed by a carry for each year of the month counter.
The range for year which can be set is 0000 to 9999 (decimal). Errant operation will result if any
other value is set. Carry out write processing after stopping the count operation with the START
bit in RCR2 or using a carry flag.
RYRCNT is a 16-bit readable/writable register and 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. The year counter value of 0000 is included in the leap year.
Bit
7 to 5
4
3 to 0
Bit
15 to 12 
11 to 8
7 to 4
3 to 0
Year Counter (RYRCNT)
Bit Name



Bit Name



Initial Value
All 0


Initial Value




R/W
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Reserved
These bits are always read as 0. The write value
Counter for 10-unit of month in the BCD-code.
The range can be set from 0 to 1 (decimal).
Counter for 1-unit of month in the BCD-code.
The range can be set from 0 to 9 (decimal).
Description
Counter for 1000-unit of year in the BCD-code.
The range can be set from 0 to 9 (decimal)
Counter for 100-unit of year in the BCD-code.
The range can be set from 0 to 9 (decimal).
Counter for 10-unit of year in the BCD-code.
The range can be set from 0 to 9 (decimal).
Counter for 1-unit of year in the BCD-code.
The range can be set from 0 to 9 (decimal).
should always be 0.
Rev. 1.00 Dec. 27, 2005 Page 513 of 932
Section 15 Realtime Clock (RTC)
REJ09B0269-0100