UPD78F1506GF-GAT-AX Renesas Electronics America, UPD78F1506GF-GAT-AX Datasheet - Page 373

• Manufacturer Part Number: UPD78F1506GF-GAT-AX
• Description: MCU 16BIT 78K0R/LX3 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Lx3r

Specifications of UPD78F1506GF-GAT-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LCD, LVD, POR, PWM, WDT
• Number Of I /o: 78
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x12b, D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0R/Lx3
7.4.4 Setting alarm of real-time counter
R01UH0004EJ0401 Rev.4.01
Jul 2, 2010
Set time of alarm after setting 0 to WALE first.
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 ALARMWW
Setting ALARMWM
Setting ALARMWH
Alarm processing
INTRTC = 1?
WAFG = 1?
WALIE = 1
WALE = 0
WALE = 1
Figure 7-23. Alarm Setting Procedure
Start
Yes
Yes
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
CHAPTER 7 REAL-TIME COUNTER
373