AT90CAN128-16MU Atmel, AT90CAN128-16MU Datasheet - Page 246
![IC MCU AVR 128K FLASH 64-QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
AT90CAN128-16MU
Manufacturer Part Number
AT90CAN128-16MU
Description
IC MCU AVR 128K FLASH 64-QFN
Manufacturer
Atmel
Series
AVR® 90CANr
Specifications of AT90CAN128-16MU
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
Processor Series
AT90CANx
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
4 KB
Interface Type
2-Wire, JTAG, PS2, SPI, SRAM, USB
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
53
Number Of Timers
3
Operating Supply Voltage
1.8 V, 3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATDVK90CAN1, ATADAPCAN01
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Package
64QFN EP
Device Core
AVR
Family Name
90C
Maximum Speed
16 MHz
For Use With
ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATDVK90CAN1 - KIT DEV FOR AT90CAN128 MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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Part Number:
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Manufacturer:
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Quantity:
12 000
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Part Number:
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Manufacturer:
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19.5.3
19.5.4
19.5.5
246
AT90CAN32/64/128
Acceptance Filter
MOb Page
CAN Data Buffers
Upon a reception hit (i.e., a good comparison between the ID + RTR + RBn + IDE received and an
IDT+ RTRTAG + RBnTAG + IDE specified while taking the comparison mask into account) the IDT
+ RTRTAG + RBnTAG + IDE received are updated in the MOb (written over the registers).
Figure 19-10. Acceptance Filter Block Diagram
Note:
Every MOb is mapped into a page to save place. The page number is the MOb number. This
page number is set in CANPAGE register. The number 15 is reserved for factory tests.
CANHPMOB register gives the MOb having the highest priority in CANSIT registers. It is format-
ted to provide a direct entry for CANPAGE register. Because CANHPMOB codes CANSIT
registers, it will be only updated if the corresponding enable bits (ENRX, ENTX, ENERR) are
enabled (c.f.
To preserve register allocation, the CAN data buffer is seen such as a FIFO (with address
pointer accessible) into a MOb selection.This also allows to reduce the risks of un-controlled
accesses.
There is one FIFO per MOb. This FIFO is accessed into a MOb page thanks to the CAN mes-
sage register.
internal RxDcan
Examples:
Full filtering: to accept only ID = 0x317 in part A.
- ID MSK = 111 1111 1111
- ID TAG = 011 0001 0111
Partial filtering: to accept ID from 0x310 up to 0x317 in part A.
- ID MSK = 111 1111 1000
- ID TAG = 011 0001 0xxx
No filtering: to accept all ID from 0x000 up to 0x7FF in part A.
- ID MSK = 000 0000 0000
- ID TAG = xxx xxxx xxxx
CANIDT Registers & CANCDMOB (MOb[i])
ID & RB
Figure
19-14).
14(33)
Rx Shift Register (internal)
ID & RB
RTRTAG
Enable
Write
14(33)
13(31) - RB excluded
IDE
RTR
b
b
b
b
b
b
=
IDE
RB excluded
IDMSK
13(31)
1
CANIDM Registers (MOb[i])
13(31)
RTRMSK
IDEMSK
7679H–CAN–08/08
Hit MOb[i]
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