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ST72344K2 датащи(PDF) 175 Page - STMicroelectronics

номер детали ST72344K2
подробное описание детали  SCI asynchronous serial interface
PDF  247 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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ST72344K2 датащи(HTML) 175 Page - STMicroelectronics

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ST72344xx, ST2345xx
On-chip peripherals
Doc ID 12321 Rev 6
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Figure 75.
Transfer sequencing
Legend: S = Start, P = Stop, A = Acknowledge, NA = Non-acknowledge,
WF = WF event, WFx bit is set (with interrupt if ITWEx=1, after Stop or Restart conditions),
cleared by reading the I2C3SSR register while no communication is ongoing.
RF = RF event, RFx is set (with interrupt if ITREx=1, after Stop or Restart conditions),
cleared by reading the I2C3SSR register while no communication is ongoing.
BusyW = BusyW flag in the I2C3CR2 register set, cleared by software writing 0.
Note:
The I2C3S supports a repeated start (Sr) in place of a stop condition (P).
Figure 76.
Byte write
Figure 77.
Page write
Figure 78.
Current address read
Figure 79.
Random read (dummy write + restart + current address read)
7-bit Slave receiver:
7-bit Slave transmitter:
S Address A
Data1
A
Data2
A
.....
DataN
A P
WF
BusyW
S Address A
Data1
A
Data2
A
.....
DataN NA P
RF
SA
W
Ack
Start
Ack
Data
Ack
Stop
BA
SA
W
Ack
Start
Data
BA
Ack
Stop
Ack
Data
Ack
SA
Start
Data
Nack
Stop
RAck
Start
Ack
Ack Start
SA
R
Ack
Data
Nack
Stop
W
SA
BA



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