ATMEGA64M1-AU Atmel, ATMEGA64M1-AU Datasheet - Page 211

• Manufacturer Part Number: ATMEGA64M1-AU
• Description: IC MCU AVR 64K FLASH 32TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA64M1-AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: CAN, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Lead Free Status / Rohs Status: Details

20.5.7.5
20.5.7.6
20.5.8
8209D–AVR–11/10
xxOK Flags
Data Length after Error
Data Length in UART Mode
Figure 20-11. Tx Response - Error
Note:
There are three xxOK flags in LINSIR register:
These flags can generate interrupts if the corresponding enable interrupt bit is set in the LINE-
NIR register (see
• The user initializes LTXDL field before setting the Tx Response command
• After setting the Tx Response command, LRXDL is reset by hardware
• LTXDL will remain unchanged during Tx (during busy signal)
• LRXDL will count the number of transmitted bytes (during busy signal)
• If an error occurs, Tx stops, the corresponding error flag is set and LRXDL will give the
• If no error occurs, LTXOK is set after the transmission of the CHECKSUM, LTXDL will be
• The UART mode forces LRXDL and LTXDL to 0 and disables the writing in LINDLR register
• Note that after reset, LRXDL and LTXDL are also forced to 0
• LIDOK: LIN IDentifier OK
• LRXOK: LIN RX response complete
• LTXOK: LIN TX response complete
number of transmitted bytes without error
unchanged (and LRXDL = LTXDL)
It is set at the end of the header, either by the Tx Header function or by the Rx Header. In LIN
1.3, before generating LIDOK, the controller updates the LRXDL & LTXDL fields in LINDLR
register.
It is not driven in UART mode.
It is set at the end of the response by the Rx Response function in LIN mode and once a
character is received in UART mode.
It is set at the end of the response by the Tx Response function in LIN mode and once a
character has been sent in UART mode.
LIN bus
Information on response (ex: error on byte) is only available at the end of the serialization/de-seri-
alization of the byte
LBUSY
LRXDL
LTXDL
Section 20.5.13 “Interrupts” on page
4
4
DATA-0
1
LCMD=Tx Response
st
Byte
0
ATmega16M1/32M1/64M1
DATA-1
2
nd
Byte
1
214).
LCMD2..0=000
ERROR
3
DATA-2
rd
Byte
2
b
LERR
211