AT91SAM9263B-CU Atmel, AT91SAM9263B-CU Datasheet - Page 659
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:
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Manufacturer:
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Quantity:
1 043
Part Number:
AT91SAM9263B-CU
Manufacturer:
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Part Number:
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37.6.4.3
37.6.4.4
6249H–ATARM–27-Jul-09
Autobaud Mode
Error Detection
Figure 37-6. CAN Resynchronization
The autobaud feature is enabled by setting the ABM field in the CAN_MR register. In this mode,
the CAN controller is only listening to the line without acknowledging the received messages. It
can not send any message. The errors flags are updated. The bit timing can be adjusted until no
error occurs (good configuration found). In this mode, the error counters are frozen. To go back
to the standard mode, the ABM bit must be cleared in the CAN_MR register.
There are five different error types that are not mutually exclusive. Each error concerns only spe-
cific fields of the CAN data frame (refer to the Bosch CAN specification for their
correspondence):
• CRC error (CERR bit in the CAN_SR register): With the CRC, the transmitter calculates a
• Bit-stuffing error (SERR bit in the CAN_SR register): If a node detects a sixth consecutive
• Bit error (BERR bit in CAN_SR register): A bit error occurs if a transmitter sends a dominant
• Form Error (FERR bit in the CAN_SR register): If a transmitter detects a dominant bit in one
checksum for the CRC bit sequence from the Start of Frame bit until the end of the Data
Field. This CRC sequence is transmitted in the CRC field of the Data or Remote Frame.
equal bit level during the bit-stuffing area of a frame, it generates an Error Frame starting with
the next bit-time.
bit but detects a recessive bit on the bus line, or if it sends a recessive bit but detects a
dominant bit on the bus line. An error frame is generated and starts with the next bit time.
of the fix-formatted segments CRC Delimiter, ACK Delimiter or End of Frame, a form error
has occurred and an error frame is generated.
(before resynchronization)
(before resynchronization)
resynchronization
resynchronization
Nominal bit time
Nominal bit time
Bit time with
Bit time with
Received
Received
data bit
data bit
THE PHASE ERROR IS POSITIVE
(the transmitter is slower than the receiver)
THE PHASE ERROR IS NEGATIVE
(the transmitter is faster than the receiver)
SYNC_
SYNC_
SEG
SEG
PHASE_
PHASE_SEG2
Phase error
SEG2
Phase error
Phase error (max Tsjw)
PROP_SEG
PROP_SEG
SYNC_
SEG
SYNC_
SEG
PROP_SEG
PHASE_SEG1 PHASE_SEG2
PHASE_SEG1
PROP_SEG
Sample point
Nominal
after resynchronization
Phase error (max Tsjw)
PHASE_SEG1
Sample point
Sample point
after resynchronization
PHASE_SEG2
PHASE_SEG1
AT91SAM9263
SYNC_
PHASE_SEG2
SEG
Nominal
Sample point
PHASE_SEG2
SYNC_
SEG
SYNC_
SEG
SYNC_
SEG
659
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