UPD78F1211MC-GAA-AX Renesas Electronics America, UPD78F1211MC-GAA-AX Datasheet - Page 563

• Manufacturer Part Number: UPD78F1211MC-GAA-AX
• Description: MCU 16BIT 78K0R/LX3 38-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Ix3r

Specifications of UPD78F1211MC-GAA-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 27
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

9.4.4 Setting alarm of real-time counter
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 ALARMWM
Setting ALARMWW
Setting ALARMWH
Alarm processing
INTRTC = 1?
WAFG = 1?
WALIE = 1
WALE = 0
WALE = 1
Figure 9-22. Alarm Setting Procedure
Start
CHAPTER 9 REAL-TIME COUNTER
Yes
Yes
User’s Manual U19678EJ1V1UD
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
561