HD64F36077GHV Renesas Electronics America, HD64F36077GHV Datasheet - Page 200

• 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

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 Sources
Rev. 1.00 Sep. 16, 2005 Page 170 of 490
REJ09B0216-0100
Interrupt Name
Overflow interrupt
Week periodic interrupt
Day periodic interrupt
Hour periodic interrupt
Minute periodic interrupt
Second periodic interrupt
Interrupt Sources
Interrupt Source
Occurs when the free running counter is
overflowed.
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