DSPIC33FJ128MC202-E/SP Microchip Technology, DSPIC33FJ128MC202-E/SP Datasheet - Page 309
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DSPIC33FJ128MC202-E/SP
Manufacturer Part Number
DSPIC33FJ128MC202-E/SP
Description
16-bit DSC, 128KB Flash,Motor,DMA,40 MIPS,nanoWatt 28 SPDIP .300in TUBE
Manufacturer
Microchip Technology
Series
dsPIC™ 33Fr
Specifications of DSPIC33FJ128MC202-E/SP
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
21
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 6x10b/12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-DIP (0.300", 7.62mm)
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
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26.0
The programmable CRC generator offers the following
features:
• User-programmable polynomial CRC equation
• Interrupt output
• Data FIFO
FIGURE 26-1:
© 2011 Microchip Technology Inc.
dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04
D
Note 1: This data sheet summarizes the features
PLEN<3:0>
OUT
XOR
2: Some registers and associated bits
PROGRAMMABLE CYCLIC
REDUNDANCY CHECK (CRC)
GENERATOR
of
dsPIC33FJ64MCX02/X04
dsPIC33FJ128MCX02/X04
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet,
Programmable
Check
“dsPIC33F/PIC24H Family Reference
Manual”, which is available from the
Microchip
(www.microchip.com).
described in this section may not be
available on all devices. Refer to
Section 4.0 “Memory Organization”
this data sheet for device-specific register
and bit information.
IN
p_clk
Hold
BIT 0
OUT
the
0
(CRC)”
refer
CRC SHIFTER DETAILS
dsPIC33FJ32MC302/304,
Cyclic Redundancy
to
X1
0
1
(DS70298)
web
“Section
IN
p_clk
BIT 1
Hold
OUT
family
of
1
and
site
36.
the
CRC Shift Register
of
in
X2
0
1
CRC Write Bus
26.1
The module implements a software configurable CRC
generator. The terms of the polynomial and its length
can be programmed using the CRCXOR bits (X<15:1>)
and the CRCCON bits (PLEN<3:0>), respectively.
EQUATION 26-1:
To program this polynomial into the CRC generator,
the CRC register bits should be set as shown in
Table
TABLE 26-1:
For the value of X<15:1>, the 12th bit and the 5th bit are
set to ‘1’, as required by the CRC equation. The 0th bit
required by the CRC equation is always XORed. For a
16-bit polynomial, the 16th bit is also always assumed
to be XORed; therefore, the X<15:1> bits do not have
the 0th bit or the 16th bit.
The topology of a standard CRC generator is shown in
Figure
IN
p_clk
Hold
BIT 2
PLEN<3:0>
OUT
Bit Name
X<15:1>
26-1.
26-2.
2
Overview
CRC Read Bus
x
16
EXAMPLE CRC SETUP
X3
0
1
+
CRC EQUATION
x
12
X15
000100000010000
0
1
+
x
5
+
Bit Value
IN
1
BIT 15
1111
p_clk
Hold
OUT
DS70291E-page 309
15
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