DSPIC33FJ16MC304-E/PT Microchip Technology, DSPIC33FJ16MC304-E/PT Datasheet - Page 121

• Manufacturer Part Number: DSPIC33FJ16MC304-E/PT
• Description: 16-bit DSC, 16KB Flash,Motor,40 MIPS,nanoWatt 44 TQFP 10x10x1mm TRAY
• Manufacturer: Microchip Technology
• Series: dsPIC™ 33Fr

Specifications of DSPIC33FJ16MC304-E/PT

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 40 MIPs
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, Motor Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 9x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: DSPIC33FJ16MC304-E/PTTR; DSPIC33FJ16MC304-E/PTTR

10.6
Peripheral pin select configuration enables peripheral
set selection and placement on a wide range of I/O
pins. By increasing the pinout options available on a
particular device, programmers can better tailor the
microcontroller to their entire application, rather than
trimming the application to fit the device.
The peripheral pin select configuration feature
operates over a fixed subset of digital I/O pins.
Programmers can independently map the input and/or
output of most digital peripherals to any one of these
I/O pins. Peripheral pin select is performed in software,
and generally does not require the device to be
reprogrammed. Hardware safeguards are included that
prevent accidental or spurious changes to the
peripheral mapping, once it has been established.
10.6.1
The peripheral pin select feature is used with a range
of up to 26 pins. The number of available pins depends
on the particular device and its pin count. Pins that
support the peripheral pin select feature include the
designation “RPn” in their full pin designation, where
“RP” designates a remappable peripheral and “n” is the
remappable pin number.
10.6.2
Peripheral pin select features are controlled through
two sets of special function registers: one to map
peripheral inputs, and one to map outputs. Because
they are separately controlled, a particular peripheral’s
input and output (if the peripheral has both) can be
placed on any selectable function pin without
constraint.
The association of a peripheral to a peripheral
selectable pin is handled in two different ways,
depending on whether an input or output is being
mapped.
© 2011 Microchip Technology Inc.
Peripheral Pin Select
AVAILABLE PINS
CONTROLLING PERIPHERAL PIN
SELECT
dsPIC33FJ32MC202/204 and dsPIC33FJ16MC304
10.6.2.1
The inputs of the peripheral pin select options are
mapped on the basis of the peripheral. A control
register associated with a peripheral dictates the pin it
will be mapped to. The RPINRx registers are used to
configure peripheral input mapping (see
through
5-bit fields, with each set associated with one of the
remappable
peripheral’s bit field with an appropriate 5-bit value
maps the RPn pin with that value to that peripheral. For
any given device, the valid range of values for any bit
field corresponds to the maximum number of peripheral
pin selections supported by the device.
Figure 10-2
U1RX input.
FIGURE 10-2:
RP25
Note:
RP0
RP1
RP2
Register
For input mapping only, the Peripheral Pin
Select (PPS) functionality does not have
priority over the TRISx settings. There-
fore, when configuring the RPn pin for
input, the corresponding bit in the TRISx
register must also be configured for input
(i.e., set to ‘1’).
Illustrates remappable pin selection for
Input Mapping
peripherals.
10-13). Each register contains sets of
REMAPPABLE MUX
INPUT FOR U1RX
Programming
U1RXR<4:0>
25
0
1
2
DS70283H-page 121
U1RX input
to peripheral
Register 10-1
a
given