ATSAM3X4EA-AU Atmel, ATSAM3X4EA-AU Datasheet - Page 828
ATSAM3X4EA-AU
Manufacturer Part Number
ATSAM3X4EA-AU
Description
ARM Microcontrollers - MCU QFP144,GREEN, IND TEMP, MRL A
Manufacturer
Atmel
Datasheet
1.ATSAM3X8EA-AU.pdf
(1467 pages)
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
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Figure 36-49. Slave Node Configuration, NACT = PUBLISH
Figure 36-50. Slave Node Configuration, NACT = SUBSCRIBE
828
828
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
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