UPD78F0413GA-GAM-AX NEC, UPD78F0413GA-GAM-AX Datasheet - Page 279

• Manufacturer Part Number: UPD78F0413GA-GAM-AX
• Description: 8BIT UC, 32K FLASH, 1KB RAM, LCD
• Manufacturer: NEC

Specifications of UPD78F0413GA-GAM-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 30
• Ram Memory Size: 1024Byte
• Cpu Speed: 10MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 32KB
• Oscillator Type: External, Internal

9.4.3 Setting alarm of real-time counter
Set time of alarm when WALE = 0.
Remarks 1. ALARMWM, ALARMWH, and ALARMWW may be written in any sequence.
2. Fixed-cycle interrupts and alarm match interrupts use the same interrupt source (INTRTC). When
using these two types of interrupts at the same time, which interrupt occurred can be judged by
checking the fixed-cycle interrupt status flag (RIFG) and the alarm detection status flag (WAFG) upon
INTRTC occurrence.
Match detection of alarm
No
Setting ALARMWM
Setting ALARMWW
Setting ALARMWH
Alarm processing
INTRTC = 1?
WAFG = 1?
WALIE = 1
WALE = 0
WALE = 1
Figure 9-21. Alarm Setting Procedure
Start
CHAPTER 9 REAL-TIME COUNTER
Yes
Yes
User’s Manual U18698EJ1V0UD
No
Match operation of alarm is invalid.
Interrupt is generated when alarm matches.
Sets alarm minute register.
Sets alarm hour register.
Sets alarm week register.
Match operation of alarm is valid.
Constant-period interrupt servicing
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