HD64F3684FP Renesas Electronics America, HD64F3684FP Datasheet - Page 179

• Manufacturer Part Number: HD64F3684FP
• Description: IC H8 MCU FLASH 32K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of HD64F3684FP

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: PWM, WDT
• Number Of I /o: 45
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

10.3.3
RHRDR counts the BCD-coded hour value on the carry generated once per hour by RMINDR.
The setting range is either decimal 00 to 11 or 00 to 23 by the selection of the 12/24 bit in
RTCCR1.
Bit
7
6
5
4
3
2
1
0
Bit Name
BSY
—
HR11
HR10
HR03
HR02
HR01
HR00
Hour Data Register (RHRDR)
Initial
Value
—
0
—
—
—
—
—
—
R/W
R
—
R/W
R/W
R/W
R/W
R/W
R/W
Description
RTC busy
This bit is set to 1 when the RTC is updating (operating)
the values of second, minute, hour, and day-of-week data
registers. When this bit is 0, the values of second, minute,
hour, and day-of-week data registers must be adopted.
Reserved
This bit is always read as 0.
Counting ten’s position of hours
Counts on 0 to 2 for ten’s position of hours.
Counting one’s position of hours
Counts on 0 to 9 once per hour. When a carry is
generated, 1 is added to the ten’s position.
Rev.5.00 Nov. 02, 2005 Page 145 of 500
Section 10 Realtime Clock (RTC)
REJ09B0027-0500