IC DSPIC MCU/DSP 128K 100-TQFP

DSPIC33FJ128GP310A-I/PT

Manufacturer Part NumberDSPIC33FJ128GP310A-I/PT
DescriptionIC DSPIC MCU/DSP 128K 100-TQFP
ManufacturerMicrochip Technology
SeriesdsPIC™ 33F
DSPIC33FJ128GP310A-I/PT datasheet
 

Specifications of DSPIC33FJ128GP310A-I/PT

Program Memory TypeFLASHProgram Memory Size128KB (128K x 8)
Package / Case100-TFQFPCore ProcessordsPIC
Core Size16-BitSpeed40 MIPs
ConnectivityI²C, IrDA, LIN, SPI, UART/USARTPeripheralsAC'97, Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Number Of I /o85Ram Size16K x 8
Voltage - Supply (vcc/vdd)3 V ~ 3.6 VData ConvertersA/D 32x10b/12b
Oscillator TypeInternalOperating Temperature-40°C ~ 85°C
ProductDSCsData Bus Width16 bit
Processor SeriesDSPIC33FCoredsPIC
Maximum Clock Frequency40 MHzNumber Of Programmable I/os85
Data Ram Size16 KBMaximum Operating Temperature+ 85 C
Mounting StyleSMD/SMT3rd Party Development Tools52713-733, 52714-737, 53276-922, EWDSPIC
Development Tools By SupplierPG164130, DV164035, DV244005, DV164005, PG164120, DM240001, DV164033Minimum Operating Temperature- 40 C
Lead Free Status / RoHS StatusLead free / RoHS CompliantFor Use With876-1001 - DSPIC33 BREAKOUT BOARD
Eeprom Size-  
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Page 203/338

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dsPIC33FJXXXGPX06A/X08A/X10A
19.3
Modes of Operation
The CAN module can operate in one of several operation
modes selected by the user. These modes include:
• Initialization Mode
• Disable Mode
• Normal Operation Mode
• Listen Only Mode
• Listen All Messages Mode
• Loopback Mode
Modes are requested by setting the REQOP<2:0> bits
(CiCTRL1<10:8>). Entry into a mode is Acknowledged
by
monitoring
the
OPMODE<2:0>
(CiCTRL1<7:5>). The module will not change the mode
and the OPMODE bits until a change in mode is
acceptable, generally during bus Idle time, which is
defined as at least 11 consecutive recessive bits.
19.3.1
INITIALIZATION MODE
In the Initialization mode, the module will not transmit or
receive. The error counters are cleared and the
interrupt flags remain unchanged. The programmer will
have access to Configuration registers that are access
restricted in other modes. The module will protect the
user from accidentally violating the CAN protocol
through programming errors. All registers which control
the configuration of the module can not be modified
while the module is on-line. The CAN module will not
be allowed to enter the Configuration mode while a
transmission is taking place. The Configuration mode
serves as a lock to protect the following registers:
• All Module Control Registers
• Baud Rate and Interrupt Configuration Registers
• Bus Timing Registers
• Identifier Acceptance Filter Registers
• Identifier Acceptance Mask Registers
19.3.2
DISABLE MODE
In Disable mode, the module will not transmit or
receive. The module has the ability to set the WAKIF bit
due to bus activity, however, any pending interrupts will
remain and the error counters will retain their value.
If the REQOP<2:0> bits (CiCTRL1<10:8>) = 001, the
module will enter the Module Disable mode. If the module
is active, the module will wait for 11 recessive bits on the
CAN bus, detect that condition as an Idle bus, then
accept the module disable command. When the
OPMODE<2:0>
bits
(CiCTRL1<7:5>) = 001,
indicates whether the module successfully went into
Module Disable mode. The I/O pins will revert to normal
I/O function when the module is in the Module Disable
mode.
The module can be programmed to apply a low-pass
filter function to the CiRX input line while the module or
the CPU is in Sleep mode. The WAKFIL bit
(CiCFG2<14>) enables or disables the filter.
 2009 Microchip Technology Inc.
Note:
Typically, if the CAN module is allowed to
transmit in a particular mode of operation
and
a
transmission
immediately after the CAN module has
been placed in that mode of operation, the
module waits for 11 consecutive recessive
bits
on
the
transmission. If the user switches to
Disable mode within this 11-bit period, then
this transmission is aborted and the corre-
sponding TXABT bit is set and TXREQ bit
is cleared.
bits
19.3.3
NORMAL OPERATION MODE
Normal
Operation
mode
REQOP<2:0> = 000. In this mode, the module is
activated and the I/O pins will assume the CAN bus
functions. The module will transmit and receive CAN
bus messages via the CiTX and CiRX pins.
19.3.4
LISTEN ONLY MODE
If the Listen Only mode is activated, the module on the
CAN bus is passive. The transmitter buffers revert to
the port I/O function. The receive pins remain inputs.
For the receiver, no error flags or Acknowledge signals
are sent. The error counters are deactivated in this
state. The Listen Only mode can be used for detecting
the baud rate on the CAN bus. To use this, it is
necessary that there are at least two further nodes that
communicate with each other.
19.3.5
LISTEN ALL MESSAGES MODE
The module can be set to ignore all errors and receive
any message. The Listen All Messages mode is
activated by setting REQOP<2:0> = ‘111’. In this
mode, the data which is in the message assembly buf-
fer, until the time an error occurred, is copied in the
receive buffer and can be read via the CPU interface.
19.3.6
LOOPBACK MODE
If the Loopback mode is activated, the module will
connect the internal transmit signal to the internal
receive signal at the module boundary. The transmit
and receive pins revert to their port I/O function.
that
Preliminary
is
requested
bus
before
starting
is
selected
when
DS70593B-page 203