HD64F3684FP Renesas Electronics America, HD64F3684FP Datasheet - Page 186

• 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: -

Section 10 Realtime Clock (RTC)
10.5
There are five kinds of RTC interrupts: week interrupts, day interrupts, hour interrupts, minute
interrupts, and second interrupts.
When using an interrupt, initiate the RTC last after other registers are set. Do not set multiple
interrupt enable bits in RTCCR2 simultaneously to 1.
When an interrupt request of the RTC occurs, the IRRTA flag in IRR1 is set to 1. When clearing
the flag, write 0.
Table 10.2 Interrupt Source
Rev.5.00 Nov. 02, 2005 Page 152 of 500
REJ09B0027-0500
Interrupt Name
Overflow interrupt
Week periodic interrupt
Day periodic interrupt
Hour periodic interrupt
Minute periodic interrupt
Second periodic interrupt
Interrupt Source
Interrupt Source
Occurs when the free running counter is
overflown.
Occurs every week when the day-of-week date
register value becomes 0.
Occurs every day when the day-of-week date
register is counted.
Occurs every hour when the hour date register
is counted.
Occurs every minute when the minute date
register is counted.
Occurs every second when the second date
register is counted.
Interrupt Enable Bit
FOIE
WKIE
DYIE
HRIE
MNIE
SCIE