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ST72325AR7-Auto 데이터시트(PDF) 150 Page - STMicroelectronics

부품명 ST72325AR7-Auto
상세설명  SCI asynchronous serial interface
PDF  243 Pages
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ST72325AR7-Auto 데이터시트(HTML) 150 Page - STMicroelectronics

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Obsolete
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Serial communications interface (SCI)
ST72325xxx-Auto
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Doc ID 13770 Rev 3
Figure 67.
Bit sampling in reception mode
15.5
Low power modes
15.6
Interrupts
The SCI interrupt events are connected to the same interrupt vector.
These events generate an interrupt if the corresponding Enable Control Bit is set and the
interrupt mask in the CC register is reset (RIM instruction).
RDI LINE
Sample
clock
12345678910
11
12
13
14
15
16
sampled values
One bit time
6/16
7/16
7/16
Table 72.
Effect of low power modes on SCI
Mode
Effect
Wait
No effect on SCI.
SCI interrupts cause the device to exit from Wait mode.
Halt
SCI registers are frozen.
In Halt mode, the SCI stops transmitting/receiving until Halt mode is exited.
Table 73.
SCI interrupt control/wake-up capability
Interrupt event
Event flag
Enable control
bit
Exit from
Wait
Exit from
Halt
Transmit Data Register Empty
TDRE
TIE
Yes
No
Transmission Complete
TC
TCIE
Yes
No
Received Data Ready to be Read
RDRF
RIE
Yes
No
Overrun Error Detected
OR
Yes
No



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