AT32UC3A464 Atmel Corporation, AT32UC3A464 Datasheet - Page 579

• Manufacturer Part Number: AT32UC3A464
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A464

• Flash (kbytes): 64 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• Hardware Qtouch Acquisition: No
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Sd / Emmc: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0 to 3.6
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

25.6.10
25.6.10.1
25.6.10.2
25.6.10.3
25.6.10.4
25.6.10.5
25.6.11
25.6.11.1
32072G–11/2011
LIN Errors
LIN Frame Handling
Bit Error (CSR.LINBE)
Slave Not Responding Error (CSR.LINSNRE)
Checksum Error (CSR.LINCE)
Identifier Parity Error (CSR.LINIPE)
Inconsistent Sync Field Error (CSR.LINISFE)
Master Node Configuration
Note:
If the Checksum is sent (CHKDIS=0):
If the Checksum is not sent (CHKDIS=1):
These error bits are cleared by writing a one to CSR.RSTSTA.
This error is generated if no valid message appears within the TFrame_Maximum time frame
slot, while the USART is expecting a response from another node (NACT=SUBSCRIBE).
This error is generated if the received checksum is wrong. This error can only be generated if the
checksum feature is enabled (CHKDIS=0).
This error is generated if the identifier parity is wrong. This error can only be generated if parity is
enabled (PARDIS=0).
This error is generated in slave mode if the Sync Field character received is not 0x55. Synchro-
nization procedure is aborted.
This error is generated if the value transmitted by the USART on Tx differs from the value sam-
pled on Rx. If a bit error is detected, the transmission is aborted at the next byte border.
The following procedure depends on the NACT setting:
• TFrame_Maximum = 1.4 x (THeader_Nominal + TResponse_Nominal + 1)
• TResponse_Nominal = 10 x (NData + 1)
• TFrame_Maximum = 1.4 x (34 + 10 x (DLC + 1 + 1) + 1)
• TFrame_Maximum = 77 + 14 x DLC
• TResponse_Nominal = 10 x NData
• TFrame_Maximum = 1.4 x (34 + 10 x (DLC + 1) + 1)
• TFrame_Maximum = 63 + 14 x DLC
• Write a one to CR.TXEN and CR.RXEN to enable both transmitter and receiver
• Select LIN mode and master node by writing to MR.MODE
• Configure the baud rate by writing to CD and FP in BRGR
• Configure the frame transfer by writing to NACT, PARDIS, CHKDIS, CHKTYPE, DLCM,
• Check that CSR.TXRDY is one
• Send the header by writing to LINIR.IDCHR
FSDIS, and DLC in LINMR
The term “+1” leads to an integer result for TFrame_Max (LIN Specification 1.3)
(Note:)
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