SAM9263 Atmel Corporation, SAM9263 Datasheet - Page 672
SAM9263
Manufacturer Part Number
SAM9263
Description
Manufacturer
Atmel Corporation
Datasheets
1.M40800.pdf
(284 pages)
2.M40800.pdf
(153 pages)
3.SAM9260.pdf
(290 pages)
4.SAM9261.pdf
(248 pages)
5.SAM9263.pdf
(1109 pages)
6.SAM9263.pdf
(51 pages)
Specifications of SAM9263
Flash (kbytes)
0 Kbytes
Pin Count
324
Max. Operating Frequency
240 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
160
Ext Interrupts
160
Usb Transceiver
3
Usb Speed
Full Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
1
Uart
4
Can
1
Ssc
2
Ethernet
1
Sd / Emmc
2
Graphic Lcd
Yes
Video Decoder
No
Camera Interface
Yes
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
96
Self Program Memory
NO
External Bus Interface
2
Dram Memory
sdram
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Fpu
No
Mpu / Mmu
No / Yes
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- M40800 PDF datasheet
- M40800 PDF datasheet #2
- SAM9260 PDF datasheet #3
- SAM9261 PDF datasheet #4
- SAM9263 PDF datasheet #5
- SAM9263 PDF datasheet #6
- Current page: 672 of 1109
- Download datasheet (17Mb)
37.7.3.7
6249I–ATARM–3-Oct-11
Producer Configuration
Figure 37-16. Producer / Consumer Model
In Pull Mode, a consumer transmits a remote frame to the producer. When the producer
receives a remote frame, it sends the answer accepted by one or many consumers. Using trans-
mit and receive mailboxes, a consumer must dedicate two mailboxes, one in Transmit Mode to
send remote frames, and at least one in Receive Mode to capture the producer’s answer. The
same structure is applicable to a producer: one reception mailbox is required to get the remote
frame and one transmit mailbox to answer.
Mailboxes can be configured in Producer or Consumer Mode. A lonely mailbox can handle the
remote frame and the answer. With 16 mailboxes, the CAN controller can handle 16 indepen-
dent producers/consumers.
A mailbox is in Producer Mode once the MOT field in the CAN_MMRx register has been config-
ured. Message ID and Message Acceptance masks must be set before Receive Mode is
enabled.
After Producer Mode is enabled, the MRDY flag in the CAN_MSR register is automatically set
until the first transfer command. The software application prepares data to be sent by writing to
the CAN_MDHx and the CAN_MDLx registers, then by setting the MTCR bit in the CAN_MCRx
register. Data is sent after the reception of a remote frame as soon as it wins the bus arbitration.
The MRDY flag remains at zero as long as the message has not been sent or aborted. No
access to the mailbox data register can be done while MRDY flag is cleared. An interrupt is
pending for the mailbox while the MRDY flag is set. This interrupt can be masked according to
the mailbox flag in the CAN_IMR global register.
If a remote frame is received while no data are ready to be sent (signal MRDY set in the
CAN_MSRx register), then the MMI signal is set in the CAN_MSRx register. This bit is cleared
by reading the CAN_MSRx register.
The MRTR field in the CAN_MSRx register has no meaning. This field is used only when using
Receive and Receive with Overwrite modes.
Indications
Response
Request
Producer
Producer
PUSH MODEL
PULL MODEL
CAN Remote Frame
CAN Data Frame
CAN Data Frame
AT91SAM9263
Consumer
Confirmation(s)
Consumer
Request(s)
Indication(s)
672
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