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L9654 датащи(PDF) 53 Page - STMicroelectronics

номер детали L9654
подробное описание детали  Quad squib driver and dual sensor interface ASIC for safety application
PDF  59 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9654 датащи(HTML) 53 Page - STMicroelectronics

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L9654
Functional description
58
Table 38. "B" protocol configuration
Bit D7
Bit D6
Protocol Data Field
0
0
8bits(default)
0
1
9bits
1
0
10bits
1
1
11bits
Bits[9:8]
These bits shall configure speed selection for any of the satellite channels and they apply to
both "A" and the "B" Manchester protocol. Upon power up or reset the protocol configuration
shall initialize to the default speed as it is shown in the below table.
Table 39. Bit time selection
Bit D9
Bit D8
Guaranteed frequency operating range (Hz)
0
0
13.3k to 52.33k (default)
0
1
26.32k to 110.74k
1
0
43.50k to 164.20k
1
1
62.66k to 250k
Bits[11:10]
These bits are used to determine the requested information from each of the satellite
channels internal registers. At power up or in case of POR condition these bits are initialized
to 00 by the IC and MISO bits <12:0> shall default to the content of the MCR register.
Table 40. Mode select
Bit D11
Bit D10
Definition
00/01/10
Report This on Next MISO
Bit 13 = SPI odd parity
Bits<15:14
11 (Configuration Reports Mode)
0
0
If the previous command is a write to the MCR
Register (default)
Report <12:0> Table 35 (MCR) only for CH1
If previous command is a write to the CCRx
Register
Report <12:0> Table 36 (CCR)
0
1
Report <12:0>Table 35 (MCR) (CH1 Only)
1
0
Report <12:0>Table 36 (CCR)
11
Report This on Next MISO
Bit 13 = SPI odd parity
Bits<15:14
 (Satellite Status 00,01 or 10)
1
1
Report FIFO data



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