HD64F36077GHV Renesas Electronics America, HD64F36077GHV Datasheet - Page 193

• Manufacturer Part Number: HD64F36077GHV
• Description: 16BIT MCU FLASH 56K, SMD, LQFP64
• Manufacturer: Renesas Electronics America

Specifications of HD64F36077GHV

• No. Of I/o's: 47
• Ram Memory Size: 4KB
• Cpu Speed: 20MHz
• No. Of Timers: 4
• Digital Ic Case Style: LQFP
• Supply Voltage Range: 4.5V
• Core Size: 16bit
• Program Memory Size: 56KB
• Oscillator Type: External Only
• Controller Family/series: H8/300H
• Peripherals: ADC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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
Hour Data Register (RHRDR)
Bit Name
BSY
—
HR11
HR10
HR03
HR02
HR01
HR00
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. 1.00 Sep. 16, 2005 Page 163 of 490
Section 10 Realtime Clock (RTC)
REJ09B0216-0100