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UM0239 датащи(PDF) 20 Page - STMicroelectronics

номер детали UM0239
подробное описание детали  ST7540 Power Line Modem Demokit
PDF  44 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM0239 датащи(HTML) 20 Page - STMicroelectronics

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4.2.15
Sensitivity mode
The Sensitivity Mode parameter (Bit 22) defines the low threshold for the FSK demodulator
block.
4.2.16
Pre-filter
The Pre-filter parameter (Bit 23) enables a pre-filter on the Reception path.
4.2.17
Frame header
The Frame Header (Bits [39:24]) defines the Header to recognize when the Header
Recognition function is enabled. It can consist of one 16-bit header or by two 8-bit headers
depending on the Header Length value (Bit 20).
This function is available only if the Extended Control Register parameter (Bit 21) is
enabled.
4.2.18
Frame length
This parameter (Bits [47:40]) defines the number of data, expressed in 16-bit words (e.g.
Frame Length equal to "1"
→16 bits), to send to the Host Controller on the RxD line when
the Header Recognition and Frame Length Count parameters are enabled and a Header
has been detected.
This function is available only if the Extended Control Register parameter (Bit 21) is
enabled.
Table 17.
Extended control register
Bit 21
Value
0
Disabled (default)
1Enabled
Table 18.
Sensitivity mode
Bit 22
Value
0
Normal Sensitivity (500 µVrms) (default)
1
High Sensitivity (250 µVrms)
Table 19.
Pre-filter
Bit 23
Value
0
Disabled (default)
1Enabled
Table 20.
Pre-filter
Bits [39:24]
Value
MSB--LSB
From 0x0000 to 0xFFFF
Default
0x9B58



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