AT91SAM9263B-CU Atmel, AT91SAM9263B-CU Datasheet - Page 660
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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Manufacturer
Quantity
Price
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37.6.4.5
6249H–ATARM–27-Jul-09
Fault Confinement
To distinguish between temporary and permanent failures, every CAN controller has two error
counters: REC (Receive Error Counter) and TEC (Transmit Error Counter). The two counters
are incremented upon detected errors and are decremented upon correct transmissions or
receptions, respectively. Depending on the counter values, the state of the node changes: the
initial state of the CAN controller is Error Active, meaning that the controller can send Error
Active flags. The controller changes to the Error Passive state if there is an accumulation of
errors. If the CAN controller fails or if there is an extreme accumulation of errors, there is a state
transition to Bus Off.
Figure 37-7. Line Error Mode
An error active unit takes part in bus communication and sends an active error frame when the
CAN controller detects an error.
An error passive unit cannot send an active error frame. It takes part in bus communication, but
when an error is detected, a passive error frame is sent. Also, after a transmission, an error pas-
sive unit waits before initiating further transmission.
A bus off unit is not allowed to have any influence on the bus.
For fault confinement, two errors counters (TEC and REC) are implemented. These counters are
accessible via the CAN_ECR register. The state of the CAN controller is automatically updated
according to these counter values. If the CAN controller is in Error Active state, then the ERRA
bit is set in the CAN_SR register. The corresponding interrupt is pending while the interrupt is
not masked in the CAN_IMR register. If the CAN controller is in Error Passive Mode, then the
ERRP bit is set in the CAN_SR register and an interrupt remains pending while the ERRP bit is
set in the CAN_IMR register. If the CAN is in Bus Off Mode, then the BOFF bit is set in the
CAN_SR register. As for ERRP and ERRA, an interrupt is pending while the BOFF bit is set in
the CAN_IMR register.
• Acknowledgment error (AERR bit in the CAN_SR register): The transmitter checks the
Acknowledge Slot, which is transmitted by the transmitting node as a recessive bit, contains a
dominant bit. If this is the case, at least one other node has received the frame correctly. If
not, an Acknowledge Error has occurred and the transmitter will start in the next bit-time an
Error Frame transmission.
REC > 127
TEC > 127
or
PASSIVE
ERROR
ERROR
ACTIVE
TEC > 255
Init
REC < 127
TEC < 127
and
128 occurences of 11 consecutive recessive bits
BUS OFF
AT91SAM9263
CAN controller reset
or
660
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