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ST72344K2 датащи(PDF) 121 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
Logo STMICROELECTRONICS - STMicroelectronics

ST72344K2 датащи(HTML) 121 Page - STMicroelectronics

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ST72344xx, ST2345xx
On-chip peripherals
Doc ID 12321 Rev 6
121/247
Figure 60.
Data clock timing diagram
1.
This figure should not be used as a replacement for parametric information. Refer to Section 13: Electrical
characteristics.
11.4.5
Error flags
Master mode fault (MODF)
Master mode fault occurs when the master device’s SS pin is pulled low.
When a Master mode fault occurs:
●
The MODF bit is set and an SPI interrupt request is generated if the SPIE bit is set.
●
The SPE bit is reset. This blocks all output from the device and disables the SPI
peripheral.
●
The MSTR bit is reset, thus forcing the device into slave mode.
SCK
MSBit
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
LSBit
MSBit
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
LSBit
MISO
(from master)
MOSI
(from slave)
SS
(to slave)
CAPTURE STROBE
CPHA = 1
MSBit
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
LSBit
MSBit
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
LSBit
MISO
(from master)
MOSI
SS
(to slave)
CAPTURE STROBE
CPHA = 0
(from slave)
(CPOL = 1)
SCK
(CPOL = 0)
SCK
(CPOL = 1)
SCK
(CPOL = 0)



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