AT90CAN128-16MJ Atmel, AT90CAN128-16MJ Datasheet - Page 240
AT90CAN128-16MJ
Manufacturer Part Number
AT90CAN128-16MJ
Description
IC MCU AVR FLASH 128K 64-QFN
Manufacturer
Atmel
Series
AVR® 90CANr
Specifications of AT90CAN128-16MJ
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
CAN, EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
For Use With
ATDVK90CAN1 - KIT DEV FOR AT90CAN128 MCU
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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19.3
Figure 19-5. CAN Controller Structure
240
CAN Controller
AT90CAN32/64/128
The CAN controller implemented into AT90CAN32/64/128 offers V2.0B Active.
This full-CAN controller provides the whole hardware for convenient acceptance filtering and
message management. For each message to be transmitted or received this module contains
one so called message object in which all information regarding the message (e.g. identifier,
data bytes etc.) are stored.
During the initialization of the peripheral, the application defines which messages are to be sent
and which are to be received. Only if the CAN controller receives a message whose identifier
matches with one of the identifiers of the programmed (receive-) message objects the message
is stored and the application is informed by interrupt. Another advantage is that incoming remote
frames can be answered automatically by the full-CAN controller with the corresponding data
frame. In this way, the CPU load is strongly reduced compared to a basic-CAN solution.
Using full-CAN controller, high baudrates and high bus loads with many messages can be
handled.
CAN Data Buffers
Buffer MOb i
Buffer MOb2
Buffer MOb1
Buffer MOb0
Ma i lb ox
Message Objets
Control
Status
IDtag+IDmask
Time Stamp
Control
Status
IDtag+IDmask
Time Stamp
Control
Status
IDtag+IDmask
Time Stamp
Control
Status
IDtag+IDmask
Time Stamp
MOb i
MOb2
MOb1
MOb0
Scanning
MOb
Low priority
High priority
Gen. Control
Gen. Status
Enable MOb
Interrupt
Bit Timing
Line Error
CAN Timer
CAN Channel
MAC
LCC
PLS
7679H–CAN–08/08
Internal
Internal
RxCAN
TxCAN
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