SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 854

• Manufacturer Part Number: SAM9G20
• Manufacturer: Atmel Corporation

Specifications of SAM9G20

• Flash (kbytes): 0 Kbytes
• Pin Count: 217
• Max. Operating Frequency: 400 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 96
• Ext Interrupts: 96
• Usb Transceiver: 3
• Usb Speed: Full Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 1
• Uart: 7
• Ssc: 1
• Ethernet: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: Yes
• Adc Channels: 4
• Adc Resolution (bits): 10
• Adc Speed (ksps): 95
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: sdram
• 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
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

Figure 39-50. Slave Node Configuration, NACT = IGNORE
39.7.8.16
854
854
TXRDY
RXRDY
LINIDRX
US_LINID
US_RHR
LINTC
Read
Read
SAM9G35
SAM9G35
LIN Frame Handling With The DMAC
Break
The USART can be used in association with the DMAC in order to transfer data directly into/from
the on- and off-chip memories without any processor intervention.
The DMAC uses the trigger flags, TXRDY and RXRDY, to write or read into the USART. The
DMAC always writes in the Transmit Holding register (US_THR) and it always reads in the
Receive Holding register (US_RHR). The size of the data written or read by the DMAC in the
USART is always a byte.
Synch
Protected
Identifier
Data 1
Data N-1
Data N
Checksum
11053B–ATARM–22-Sep-11
11053B–ATARM–22-Sep-11