SAM9G46 Atmel Corporation, SAM9G46 Datasheet - Page 855
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SAM9G46
Manufacturer Part Number
SAM9G46
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9261.pdf
(248 pages)
2.SAM9261.pdf
(1274 pages)
3.SAM9261.pdf
(43 pages)
4.SAM9G46.pdf
(58 pages)
Specifications of SAM9G46
Flash (kbytes)
0 Kbytes
Pin Count
324
Max. Operating Frequency
400 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
160
Ext Interrupts
160
Usb Transceiver
3
Usb Speed
Hi-Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
2
Uart
5
Lin
4
Ssc
2
Ethernet
1
Sd / Emmc
2
Graphic Lcd
Yes
Video Decoder
No
Camera Interface
Yes
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
440
Resistive Touch Screen
Yes
Temp. Sensor
No
Crypto Engine
AES/DES
Sram (kbytes)
64
Self Program Memory
NO
External Bus Interface
2
Dram Memory
DDR2/LPDDR, SDRAM/LPSDR
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
0.9 to 1.1
Fpu
No
Mpu / Mmu
No/Yes
Timers
6
Output Compare Channels
6
Input Capture Channels
6
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
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Figure 39-51. Master Node with DMAC (PDCM = 1)
11053B–ATARM–22-Sep-11
11053B–ATARM–22-Sep-11
WRITE BUFFER
Master Node Configuration
IDENTIFIER
CHKTYP
PARDIS
CHKDIS
DATA N
DATA 0
FSDIS
NACT
DLM
DLC
|
|
|
|
(Peripheral) DMA
Controller
The user can choose between two DMAC modes by the PDCM bit in the LIN Mode register
(US_LINMR):
The WRITE buffer also contains the Identifier and the DATA, if the USART sends the response
(NACT = PUBLISH).
The READ buffer contains the DATA if the USART receives the response (NACT =
SUBSCRIBE).
• PDCM = 1: the LIN configuration is stored in the WRITE buffer and it is written by the DMAC
• PDCM = 0: the LIN configuration is not stored in the WRITE buffer and it must be written by
in the Transmit Holding register US_THR (instead of the LIN Mode register US_LINMR).
Because the DMAC transfer size is limited to a byte, the transfer is split into two accesses.
During the first access the bits, NACT, PARDIS, CHKDIS, CHKTYP, DLM and FSDIS are
written. During the second access the 8-bit DLC field is written.
the user in the LIN Mode register (US_LINMR).
APB bus
TXRDY
NODE ACTION = PUBLISH
LIN CONTROLLER
USART3
WRITE BUFFER
READ BUFFER
IDENTIFIER
CHKTYP
CHKDIS
PARDIS
DATA N
DATA 0
FSDIS
NACT
DLM
DLC
|
|
|
|
(Peripheral) DMA
Controller
APB bus
RXRDY
TXRDY
NODE ACTION = SUBSCRIBE
SAM9G35
SAM9G35
LIN CONTROLLER
USART3
855
855
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