PIC32MX440F512H-80I/PT Microchip Technology, PIC32MX440F512H-80I/PT Datasheet - Page 479

• Manufacturer Part Number: PIC32MX440F512H-80I/PT
• Description: IC PIC MCU FLASH 512K 64-TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 32MXr

Specifications of PIC32MX440F512H-80I/PT

• Program Memory Type: FLASH
• Program Memory Size: 512KB (512K x 8)
• Package / Case: 64-TFQFP
• Core Processor: MIPS32® M4K™
• Core Size: 32-Bit
• Speed: 80MHz
• Connectivity: I²C, IrDA, LIN, PMP, SPI, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 53
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 2.3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC32MX4xx
• Core: MIPS
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: I2C , SPI , UART
• Maximum Clock Frequency: 80 MHz
• Number Of Programmable I/os: 51
• Number Of Timers: 5 x 16 bit, 1 x 32 bit
• Operating Supply Voltage: 2.3 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, DM320003, DM320002, MA320002
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Controller Family/series: PIC32
• No. Of I/o's: 51
• Ram Memory Size: 32KB
• Cpu Speed: 80MHz
• No. Of Timers: 5
• Embedded Interface Type: EUART, I2C, PSP, SPI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC244003 - TEST BD MPLAB REAL ICE LOOPBACKDM320003 - BOARD DEMO USB PIC32 OTGAC244006 - KIT MPLAB REAL ICE TRACEAC164327 - MODULE SKT FOR 64TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

21.5
The RTCC alarm can be configured to generate an
interrupt at every alarm event. Refer to Section 21.3
“Alarm Mode” for details regarding the various alarm
events.
The RTCC module is enabled as a source of interrupts
via the respective RTCC interrupt enable bit:
• RTCCIE (IEC1<15>).
The alarm interrupt is signalled by the corresponding
RTCC interrupt flag bit:
• RTCCIF (IFS1<15>).
This interrupt flag must be cleared in software.
EXAMPLE 21-8:
© 2008 Microchip Technology Inc.
/*
*/
The following code example illustrates an RTCC initialization with interrupts enabled.
When the RTCC alarm interrupt is generated, the cpu will jump to the vector assigned to
RTCC interrupt.
IEC1CLR=0x00008000;
RTCCONCLR=0x8000;
while(RTCCON&0x40);
IFS1CLR=0x00008000;
IPC8CLR=0x1f000000;
IPC8SET=0x0d000000;
IEC1SET=0x00008000;
RTCTIME=0x16153300;
RTCDATE=0x06102705;
RTCALRMCLR=0xCFFF;
ALRMTIME=0x16154300;
ALRMDATE=0x06102705;
RTCALRMSET=0x8000|0x00000600; // re-enable the alarm, set alarm mask at once per day
RTCCONSET=0x8000;
while(!(RTCCON&0x40));
RTCC Interrupts
RTCC INITIALIZATION WITH INTERRUPTS
// assume RTCC write is enabled i.e. RTCWREN (RTCCON<3>) =1;
// disable RTCC interrupts
// turn off the RTCC
// wait for clock to be turned off
// clear RTCC existing event
// clear the priority
// Set IPL=3, subpriority 1
// Enable RTCC interrupts
// safe to update time to 16 hr, 15 min, 33 sec
// update the date to Friday 27 Oct 2006
// clear ALRMEN, CHIME, AMASK and ARPT;
// set alarm time to 16 hr, 15 min, 43 sec
// set alarm date to Friday 27 Oct 2006
// turn on the RTCC
// wait for clock to be turned on
Preliminary
The interrupt priority level bits and interrupt subpriority
level bits must be also be configured:
• RTCCIP<2:0> (IPC8<28:26>)
• RTCCIS<1:0> (IPC8<25:24>)
In addition to enabling the RTCC interrupt, an Interrupt
Service Routine, ISR, is required (see Example 21-9).
Note:
PIC32MX3XX/4XX
It is the user’s responsibility to clear the
corresponding interrupt flag bit before
returning from an ISR.
DS61143C-page 477