DSPIC30F3013-30I/SO Microchip Technology, DSPIC30F3013-30I/SO Datasheet - Page 89

• Manufacturer Part Number: DSPIC30F3013-30I/SO
• Description: IC DSPIC MCU/DSP 24K 28SOIC
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F3013-30I/SO

• Program Memory Type: FLASH
• Program Memory Size: 24KB (8K x 24)
• Package / Case: 28-SOIC (7.5mm Width)
• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 30 MIPs
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 20
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 10x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Product: DSCs
• Data Bus Width: 16 bit
• Processor Series: DSPIC30F
• Core: dsPIC
• Maximum Clock Frequency: 30 MHz
• Number Of Programmable I/os: 30
• Data Ram Size: 2 KB
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE4000, DM240002, DM300018, DM330011
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT28SO-1 - SOCKET TRANSITION 28SOIC 300MILDV164005 - KIT ICD2 SIMPLE SUIT W/USB CABLE
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: DSPIC30F301330ISO

12.4.2
The PWM period is specified by writing to the PRx
register. The PWM period can be calculated using
Equation
EQUATION 12-1:
PWM frequency is defined as 1/[PWM period].
FIGURE 12-2:
© 2010 Microchip Technology Inc.
PWM period = [(PRx) + 1] • 4 • Tosc •
12-1.
PWM PERIOD
OCxR = OCxRS
(Interrupt Flag)
TMR3 = PR3
T3IF = 1
(TMRx prescale value)
PWM OUTPUT TIMING
Duty Cycle
dsPIC30F2011/2012/3012/3013
Period
TMR3 = Duty Cycle
(OCxR)
OCxR = OCxRS
(Interrupt Flag)
TMR3 = PR3
T3IF = 1
When the selected TMRx is equal to its respective
period register, PRx, the following four events occur on
the next increment cycle:
• TMRx is cleared.
• The OCx pin is set.
• The PWM duty cycle is latched from OCxRS into
• The corresponding timer interrupt flag is set.
See
Timer3 is referred to in
- Exception 1: If PWM duty cycle is 0x0000,
- Exception 2: If duty cycle is greater than PRx,
OCxR.
TMR3 = Duty Cycle
the OCx pin remains low.
the pin remains high.
Figure 12-2
(OCxR)
for key PWM period comparisons.
Figure 12-2
for clarity.
DS70139G-page 89