DSPIC30F6011A-20E/PT Microchip Technology, DSPIC30F6011A-20E/PT Datasheet - Page 112
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DSPIC30F6011A-20E/PT
Manufacturer Part Number
DSPIC30F6011A-20E/PT
Description
Digital Signal Processor
Manufacturer
Microchip Technology
Series
dsPIC™ 30Fr
Datasheets
1.DSPIC30F2011-20ISO.pdf
(66 pages)
2.DSPIC30F2011-20IP.pdf
(26 pages)
3.DSPIC30F5011-20IPT.pdf
(220 pages)
4.DSPIC30F6011A-30IPT.pdf
(234 pages)
5.DSPIC30F6011A-30IPT.pdf
(8 pages)
6.DSPIC30F6011A-30IPT.pdf
(10 pages)
7.DSPIC30F6011A-30IPT.pdf
(6 pages)
8.DSPIC30F6011A-30IPT.pdf
(8 pages)
9.DSPIC30F6011A-30IPT.pdf
(16 pages)
Specifications of DSPIC30F6011A-20E/PT
Core Processor
dsPIC
Core Size
16-Bit
Speed
20 MIPS
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
52
Program Memory Size
132KB (44K x 24)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
6K x 8
Voltage - Supply (vcc/vdd)
2.5 V ~ 5.5 V
Data Converters
A/D 16x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
64-TFQFP
Package
64TQFP
Device Core
dsPIC
Family Name
dsPIC30
Maximum Speed
20 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
16 Bit
Number Of Programmable I/os
52
Interface Type
CAN/I2C/SPI/UART
On-chip Adc
16-chx12-bit
Number Of Timers
5
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC30F008 - MODULE SKT FOR DSPIC30F 64TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DSPIC30F6011A-20E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
DSPIC30F6011A-20E/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
dsPIC30F5011/5013
17.5.6
Transmit interrupts can be divided into 2 major groups,
each including various conditions that generate
interrupts:
• Transmit Interrupt:
• Transmit Error Interrupts:
FIGURE 17-2:
DS70116J-page 112
T
- Transmitter Warning Interrupt:
- Transmitter Error Passive:
- Bus Off:
At least one of the three transmit buffers is empty
(not scheduled) and can be loaded to schedule a
message for transmission. Reading the TXnIF
flags will indicate which transmit buffer is available
and caused the interrupt.
A transmission error interrupt will be indicated by
the ERRIF flag. This flag shows that an error con-
dition occurred. The source of the error can be
determined by checking the error flags in the CAN
Interrupt Status register, CiINTF. The flags in this
register are related to receive and transmit errors.
Input Signal
Q
The TXWAR bit indicates that the transmit error
counter has reached the CPU warning limit of
96.
The TXEP bit (CiINTF<12>) indicates that the
transmit error counter has exceeded the error
passive limit of 127 and the module has gone to
error passive state.
The TXBO bit (CiINTF<13>) indicates that the
transmit error counter has exceeded 255 and
the module has gone to the bus off state.
TRANSMIT INTERRUPTS
Sync
CAN BIT TIMING
Segment
Prop
Segment 1
Phase
Sample Point
17.6
All nodes on any particular CAN bus must have the
same nominal bit rate. In order to set the baud rate, the
following parameters have to be initialized:
• Synchronization Jump Width
• Baud Rate Prescaler
• Phase Segments
• Length determination of Phase Segment 2
• Sample Point
• Propagation Segment bits
17.6.1
All controllers on the CAN bus must have the same
baud rate and bit length. However, different controllers
are not required to have the same master oscillator
clock. At different clock frequencies of the individual
controllers, the baud rate has to be adjusted by
adjusting the number of time quanta in each segment.
The nominal bit time can be thought of as being divided
into separate non-overlapping time segments. These
segments are shown in
• Synchronization Segment (Sync Seg)
• Propagation Time Segment (Prop Seg)
• Phase Segment 1 (Phase1 Seg)
• Phase Segment 2 (Phase2 Seg)
The time segments and also the nominal bit time are
made up of integer units of time called time quanta or
T
of 8 T
the minimum nominal bit time is 1 μsec corresponding
to a maximum bit rate of 1 MHz.
Q
. By definition, the nominal bit time has a minimum
Q
and a maximum of 25 T
Baud Rate Setting
BIT TIMING
Segment 2
Phase
Figure
© 2011 Microchip Technology Inc.
17-2.
Q
. Also, by definition,
Sync