DF38602RFT10 Renesas Electronics America, DF38602RFT10 Datasheet - Page 221

• Manufacturer Part Number: DF38602RFT10
• Description: MCU 3V 16K 32-QFN
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H SLPr

Specifications of DF38602RFT10

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 10MHz
• Connectivity: I²C, IrDA, SCI, SSU
• Peripherals: POR, PWM, WDT
• Number Of I /o: 13
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 32-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F38602RFT10; HD64F38602RFT10

11.3
The RTC has the following registers.
• Second data register/free running counter data register (RSECDR)
• Minute data register (RMINDR)
• Hour data register (RHRDR)
• Day-of-week data register (RWKDR)
• RTC control register 1 (RTCCR1)
• RTC control register 2 (RTCCR2)
• Clock source select register (RTCCSR)
• RTC interrupt flag register (RTCFLG)
11.3.1
RSECDR counts the BCD-coded second value. The setting range is decimal 00 to 59. It is an 8-bit
read register used as a counter, when it operates as a free running counter. For more information
on reading seconds, minutes, hours, and day-of-week, see section 11.4.3, Data Reading Procedure.
Note:
Bit
7
6
5
4
3
2
1
0
*
Bit Name
BSY
SC12
SC11
SC10
SC03
SC02
SC01
SC00
Register Descriptions
Second Data Register/Free Running Counter Data Register (RSECDR)
Initial value after a reset caused by the RST bit in RTCCR1.
Initial
Value
—/(0)*
—/(0)*
—/(0)*
—/(0)*
—/(0)*
—/(0)*
—/(0)*
—/(0)*
R/W
R
R/W
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.
Counting Ten's Position of Seconds
Counts on 0 to 5 for 60-second counting.
Counting One's Position of Seconds
Counts on 0 to 9 once per second. When a carry is
generated, 1 is added to the ten's position.
Rev. 3.00 May 15, 2007 Page 187 of 518
Section 11 Realtime Clock (RTC)
REJ09B0152-0300