DSPIC30F1010-20E/SO Microchip Technology, DSPIC30F1010-20E/SO Datasheet - Page 6

• Manufacturer Part Number: DSPIC30F1010-20E/SO
• Description: 6KB, Flash, 256bytes-RAM, 30MIPS, 21I/O, 16-bit Family,nanoWatt 28 SOIC .300in T
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F1010-20E/SO

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 20 MIPS
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 6KB (2K x 24)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DM300023 - KIT DEMO DSPICDEM SMPS BUCKDV164005 - KIT ICD2 SIMPLE SUIT W/USB CABLE
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

dsPIC30F1010/202X
5. Module: PWM
DS80445D-page 6
The OVRDAT<1:0> bits in the IOCONx register
should determine the state of the PWMx output
pins when the OVRENH and OVRENL bits
(IOCONx<9:8>) are set. However, the PWM
override feature does not work correctly. The
PWMxH and PWMxL pins do not exhibit the state
specified by the OVRDAT<1:0> bits when only one
of the override bits (OVRENH or OVRENL) is set.
If both bits are set, the override state is exhibited
correctly on the PWMxL and PWMxH pins.
Work around
If override capability is desired on only one of the
PWM pin pairs, use the GPIO module to override
the PWM outputs. This can be done using the
PENH and PENL bits in the IOCONx register.
When the PENH/PENL bits in the IOCONx register
are cleared, the GPIO module assumes control of
the PWMxH/L output pin. The GPIO module must
be setup in advance for the desired override output
states, and the pins must be configured as digital
outputs. This includes setting the PORTx and
TRISx registers correctly, which correspond to the
PWMxH and PWMxL pins.
Affected Silicon Revisions
A1
X
A2
X
A3
X
6. Module: PWM
The dsPIC30F1010/202X device data sheet states
that the minimum PWM duty cycle value is
0x0010. Duty cycle values less than 0x0010
should cause the PWM outputs to display states
corresponding to a duty cycle value of 0x0000.
However, when a value of 0x0010 or less is loaded
into the selected duty cycle register, the outputs of
the PWM generator (PWMxH and PWMxL) will
exhibit a state opposite of the expected state.
For example, if the expected state of the PWM
output is a continuous ‘0’, a continuous ‘1’ will be
observed, and vice versa. The above behavior
applies when the Master Duty Cycle register
(MDC) or Individual Duty Cycle register (PDCx)
provides the duty cycle value.
Work around
Do not load the duty cycle register with a value
less than or equal to 0x0010.
Affected Silicon Revisions
A1
X
A2
X
A3
X
© 2010 Microchip Technology Inc.