DSPIC33FJ32GP302-I/SP Microchip Technology, DSPIC33FJ32GP302-I/SP Datasheet - Page 113

• Manufacturer Part Number: DSPIC33FJ32GP302-I/SP
• Description: IC DSPIC MCU/DSP 32K 28SPDIP
• Manufacturer: Microchip Technology
• Series: dsPIC™ 33Fr

Specifications of DSPIC33FJ32GP302-I/SP

• Program Memory Type: FLASH
• Program Memory Size: 32KB (32K x 8)
• Package / Case: 28-DIP (0.300", 7.62mm)
• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 40 MIPs
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: AC'97, Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 21
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 10x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Product: DSCs
• Data Bus Width: 16 bit
• Processor Series: DSPIC33F
• Core: dsPIC
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 21
• Data Ram Size: 4 KB
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DM240001, DV164033
• Minimum Operating Temperature: - 40 C
• Package: 28SPDIP
• Device Core: dsPIC
• Family Name: dSPIC33
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 3.3 V
• Interface Type: I2C/SPI/UART
• On-chip Adc: 10-chx10-bit|10-chx12-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DV164033 - KIT START EXPLORER 16 MPLAB ICD2DM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

10.0
All of the device pins (except V
OSC1/CLKI) are shared among the peripherals and the
parallel I/O ports. All I/O input ports feature Schmitt
Trigger inputs for improved noise immunity.
10.1
A parallel I/O port that shares a pin with a peripheral is
generally
peripheral’s output buffer data and control signals are
provided to a pair of multiplexers. The multiplexers
select whether the peripheral or the associated port
has ownership of the output data and control signals of
FIGURE 10-1:
 2009 Microchip Technology Inc.
Note 1: This data sheet summarizes the features
2: Some registers and associated bits
I/O PORTS
Parallel I/O (PIO) Ports
subservient
of
dsPIC33FJ16GP304 family of devices. It
is not intended to be a comprehensive
reference source. To complement the
information in this data sheet, refer to
Section 10. “I/O Ports” (DS70193) of
the “dsPIC33F/PIC24H Family Reference
Manual”, which is available from the
Microchip website (www.microchip.com).
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
dsPIC33FJ32GP202/204 and dsPIC33FJ16GP304
Read Port
the
Read LAT
Read TRIS
Data Bus
WR TRIS
WR LAT +
WR Port
dsPIC33FJ32GP202/204 and
BLOCK DIAGRAM OF A TYPICAL SHARED PORT STRUCTURE
Peripheral Output Enable
Peripheral Output Data
Peripheral Input Data
Peripheral Module Enable
Peripheral Module
to
PIO Module
the
DD
TRIS Latch
Data Latch
D
D
CK
CK
, V
peripheral.
SS
Q
Q
, MCLR and
The
Preliminary
Output Multiplexers
the I/O pin. The logic also prevents “loop through”, in
which a port’s digital output can drive the input of a
peripheral that shares the same pin. Figure 10-1 shows
how ports are shared with other peripherals and the
associated I/O pin to which they are connected.
When a peripheral is enabled and the peripheral is
actively driving an associated pin, the use of the pin as
a general purpose output pin is disabled. The I/O pin
can be read, but the output driver for the parallel port bit
is disabled. If a peripheral is enabled, but the peripheral
is not actively driving a pin, that pin can be driven by a
port.
All port pins have three registers directly associated
with their operation as digital I/O. The data direction
register (TRISx) determines whether the pin is an input
or an output. If the data direction bit is a ‘1’, then the pin
is an input. All port pins are defined as inputs after a
Reset. Reads from the latch (LATx) read the latch.
Writes to the latch, write the latch. Reads from the port
(PORTx) read the port pins, while writes to the port pins
write the latch.
Any bit and its associated data and control registers
that are not valid for a particular device will be
disabled. That means the corresponding LATx and
TRISx registers and the port pin will read as zeros.
When a pin is shared with another peripheral or
function that is defined as an input only, it is
nevertheless regarded as a dedicated port because
there is no other competing source of outputs.
1
0
1
0
Output Enable
Output Data
Input Data
I/O
I/O Pin
DS70290F-page 113