ATSAM3X4EA-AU Atmel, ATSAM3X4EA-AU Datasheet - Page 719

• 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 34-6. Master Write with One Data Byte
Figure 34-7. Master Write with Multiple Data Bytes
11057B–ATARM–28-May-12
11057B–ATARM–28-May-12
TXCOMP
TXRDY
TWCK
TWD
Write THR (Data n)
S
DADR
While no new data is written in the TWI_THR, the Serial Clock Line is tied low. When new data is
written in the TWI_THR, the SCL is released and the data is sent. To generate a STOP event,
the STOP command must be performed by writing in the STOP field of TWI_CR.
After a Master Write transfer, the Serial Clock line is stretched (tied low) while no new data is
written in the TWI_THR or until a STOP command is performed.
See
TXCOMP
TXRDY
W
Figure
TWD
Write THR (DATA)
A
S
34-6,
STOP Command sent (write in TWI_CR)
DATA n
Figure
DADR
34-7, and
A
W
Figure
Write THR (Data n+1)
A
34-8.
DATA
DATA n+1
STOP command performed
(by writing in the TWI_CR)
A
Write THR (Data n+2)
Last data sent
P
A
DATA n+2
SAM3X/A
SAM3X/A
A
P
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