DSPIC30F5013-20E/PT Microchip Technology, DSPIC30F5013-20E/PT Datasheet - Page 8

• Manufacturer Part Number: DSPIC30F5013-20E/PT
• Description: IC DSPIC MCU/DSP 66K 80TQFP
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F5013-20E/PT

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 20 MIPS
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: AC'97, Brown-out Detect/Reset, I²S, LVD, POR, PWM, WDT
• Number Of I /o: 68
• Program Memory Size: 66KB (22K x 24)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 16x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 80-TFQFP
• For Use With: DM300024 - KIT DEMO DSPICDEM 1.1XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPAC164320 - MODULE SKT MPLAB PM3 80TQFPDM300004-2 - BOARD DEMO DSPICDEM.NET 2DM300004-1 - BOARD DEMO DSPICDEM.NET 1AC30F007 - MODULE SKT FOR DSPIC30F 80TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: DSPIC30F5013-20EP

dsPIC30F5011/5013
11. Module: DISI Instruction
12. Module: Output Compare in PWM Mode
DS80223H-page 8
When a user executes a DISI #7, for example,
this will disable interrupts for 7 + 1 cycles (7 + the
DISI instruction itself). In this case, the DISI
instruction uses a counter which counts down from
7 to 0. The counter is loaded with 7 at the end of
the DISI instruction.
If the user code executes another DISI on the
instruction cycle where the DISI counter has
become zero, the new DISI count is loaded, but
the DISI state machine does not properly
re-engage and continue to disable interrupts. At
this point, all interrupts are enabled. The next time
the user code executes a DISI instruction, the
feature will act normally and block interrupts.
In summary, it is only when a DISI execution is
coincident with the current DISI count = 0, that the
issue occurs. Executing a DISI instruction before
the DISI counter is loaded with the new value,
and interrupts remain disabled until the counter
becomes zero.
Work around
When executing multiple DISI instructions within
the source code, make sure that subsequent DISI
instructions have at least one instruction cycle
between the time that the DISI counter
decrements to zero and the next DISI instruction.
Alternatively, make sure that the subsequent DISI
instructions are called before the DISI counter
decrements to zero.
If the desired duty cycle is ‘0’ (OCxRS = 0), the
module will generate a high level glitch of 1 T
The second problem is that on the next cycle after
the glitch, the OC pin does not go high, or, in other
words, it misses the next compare for any value
written on OCxRS.
Work around
There are two possible solutions to this problem:
1. Load a value greater than ‘0’ to the OCxRS
2. If the application requires 0% duty cycles, the
register when operating in PWM mode. In this
case, no 0% duty cycle is achievable.
output compare module can be disabled for
0% duty cycles, and re-enabled for non-zero
percent duty cycles.
CY
.
13. Module: Output Compare
14. Module: INT0, ADC and Sleep Mode
15. Module: 8x PLL Mode
A glitch will be produced on an output compare pin
under the following conditions:
• The user software initially drives the I/O pin
• The output compare module is configured and
When these events occur, the output compare
module will drive the pin low for one instruction
cycle (T
Work around
None. However, the user may use a timer interrupt
and write to the associated PORT register to
control the pin manually.
ADC event triggers from the INT0 pin will not
wake-up the device from Sleep mode if the SMPI
bits are non-zero. This means that if the ADC is
configured to generate an interrupt after a certain
number of INT0 triggered conversions, the ADC
conversions will not be triggered and the device
will remain in Sleep. The ADC will perform
conversions and wake-up the device only if it is
configured to generate an interrupt after each INT0
triggered conversion (SMPI<3:0> = 0000).
Work around
None. If ADC event trigger from the INT0 pin is
required, initialize SMPI<3:0> to ‘0000’ (interrupt
on every conversion).
If 8x PLL mode is used, the input frequency range
is 5 MHz-10 MHz instead of 4 MHz-10 MHz.
Work around
None. If 8x PLL is used, make sure the input
crystal or clock frequency is 5 MHz or greater.
high using the output compare module or a
write to the associated PORT register.
enabled to drive the pin low at some later time
(OCxCON = 0x0002 or OCxCON = 0x0003).
CY
) after the module is enabled.
© 2008 Microchip Technology Inc.