ATSAM3X4EA-AU Atmel, ATSAM3X4EA-AU Datasheet - Page 828

• Manufacturer Part Number: ATSAM3X4EA-AU
• Description: ARM Microcontrollers - MCU QFP144,GREEN, IND TEMP, MRL A
• Manufacturer: Atmel

Specifications of ATSAM3X4EA-AU

• Rohs: yes
• Core: ARM Cortex M3
• Processor Series: SAM3X
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 84 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.4 V to 3.6 V
• Operating Temperature Range: - 40 C to +85 C
• Package / Case: LQFP-144
• Mounting Style: SMD/SMT
• Factory Pack Quantity: 60

Figure 36-49. Slave Node Configuration, NACT = PUBLISH
Figure 36-50. Slave Node Configuration, NACT = SUBSCRIBE
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TXRDY
RXRDY
LINIDRX
US_LINID
US_THR
LINTC
TXRDY
RXRDY
LINIDRX
US_LINID
US_RHR
LINTC
Write
Read
Read
Read
SAM3X/A
SAM3X/A
Break
Break
What comes next depends on the NACT configuration:
Synch
Synch
• Case 1: NACT = PUBLISH, the LIN controller sends the response
• Case 2: NACT = SUBSCRIBE, the USART receives the response
• Case 3: NACT = IGNORE, the USART is not concerned by the response
– Wait until TXRDY in US_CSR rises
– Write TCHR in US_THR to send a byte
– If all the data have not been written, redo the two previous steps
– Wait until LINTC in US_CSR rises
– Check the LIN errors
– Wait until RXRDY in US_CSR rises
– Read RCHR in US_RHR
– If all the data have not been read, redo the two previous steps
– Wait until LINTC in US_CSR rises
– Check the LIN errors
– Wait until LINTC in US_CSR rises
– Check the LIN errors
Protected
Protected
Identifier
Identifier
Data 1
Data 2
Data 1
Data 1
Data 1
Data 3
Data N-2
Data N
Data N-1
Data N-1
Data N-1
Data N
Data N
Data N
Checksum
Checksum
11057B–ATARM–28-May-12
11057B–ATARM–28-May-12