AT91SAM9263B-CU Atmel, AT91SAM9263B-CU Datasheet - Page 671
AT91SAM9263B-CU
Manufacturer Part Number
AT91SAM9263B-CU
Description
IC ARM9 MCU 200 MHZ 324-TFBGA
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM9263B-CU
Core Processor
ARM9
Core Size
16/32-Bit
Speed
240MHz
Connectivity
CAN, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
AC'97, LCD, POR, PWM, WDT
Number Of I /o
160
Program Memory Size
128KB (128K x 8)
Program Memory Type
ROM
Ram Size
128K x 8
Voltage - Supply (vcc/vdd)
1.08 V ~ 1.32 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
324-TFBGA
Processor Series
AT91SAMx
Core
ARM926EJ-S
Data Bus Width
32 bit
Data Ram Size
96 KB
Interface Type
2-Wire, EBI, I2S, MCI, SPI, USART
Maximum Clock Frequency
200 MHz
Number Of Programmable I/os
160
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
AT91SAM-ICE, AT91-ISP, AT91SAM9263-EK
Minimum Operating Temperature
- 40 C
Package
324TFBGA
Device Core
ARM926EJ-S
Family Name
91S
Maximum Speed
200 MHz
Operating Supply Voltage
1.8|2.5|3.3 V
Controller Family/series
AT91SAM9xxx
No. Of I/o's
160
Ram Memory Size
96KB
Cpu Speed
240MHz
No. Of Timers
1
Rohs Compliant
Yes
For Use With
AT91SAM9263-EK - KIT EVAL FOR AT91SAM9263AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
Q3735625
Available stocks
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Part Number
Manufacturer
Quantity
Price
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Part Number:
AT91SAM9263B-CU
Manufacturer:
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Quantity:
1 043
Part Number:
AT91SAM9263B-CU
Manufacturer:
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Part Number:
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Figure 37-15. Transmitting Messages
37.7.3.6
6249H–ATARM–27-Jul-09
(CAN_MCRx)
(CAN_MSRx)
(CAN_MSRx)
(CAN_MCRx)
CAN BUS
Reading CAN_MSRx
Writing CAN_MDHx &
MACR
MRDY
MABT
MTCR
Remote Frame Handling
CAN_MDLx
mailbox 5 have the same priority and have a message to send at the same time, then the mes-
sage of the mailbox 0 is sent first.
Setting the MACR bit in the CAN_MCRx register aborts the transmission. Transmission for sev-
eral mailboxes can be aborted by writing MBx fields in the CAN_MACR register. If the message
is being sent when the abort command is set, then the application is notified by the MRDY bit set
and not the MABT in the CAN_MSRx register. Otherwise, if the message has not been sent,
then the MRDY and the MABT are set in the CAN_MSR register.
When the bus arbitration is lost by a mailbox message, the CAN controller tries to win the next
bus arbitration with the same message if this one still has the highest priority. Messages to be
sent are re-tried automatically until they win the bus arbitration. This feature can be disabled by
setting the bit DRPT in the CAN_MR register. In this case if the message was not sent the first
time it was transmitted to the CAN transceiver, it is automatically aborted. The MABT flag is set
in the CAN_MSRx register until the next transfer command.
Figure 37-15
The first MBx message is sent, the second is aborted and the last one is trying to be aborted but
too late because it has already been transmitted to the CAN transceiver.
Producer/consumer model is an efficient means of handling broadcasted messages. The push
model allows a producer to broadcast messages; the pull model allows a customer to ask for
messages.
shows three MBx message attempts being made (MRDY of MBx set to 0).
MBx message
Abort MBx message
Try to Abort MBx message
MBx message
AT91SAM9263
671
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