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L9779WD датащи(PDF) 138 Page - STMicroelectronics

номер детали L9779WD
подробное описание детали  Multifunction IC for engine management system
PDF  170 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9779WD датащи(HTML) 138 Page - STMicroelectronics

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Functional description
L9779WD
138/170
DocID027452 Rev 5
SW_RST
CSB
: command selection bit - always '1'
C(5...0) : command bit
CD(7...0): command data bit
With CD(7..0) = X X X X X X X X
This command generates a L9779WD internal reset initiated by the µC's software ("software
reset") that clears all the configuration and diagnostic registers and switches-off all the
drivers.
The command has no relevant data as command data bit - they may be set to '1' or '0'.
Start, Stop
CSB
: command selection bit - always '1'
C(5...0) : command bit
CD(7...0): command data bit
The command START sets the bit <OUT_DIS> to '0'. With <OUT_DIS> = '0' the outputs
[OUT1...OUT9] [OUT13…OUT28] and [IGN1...IGN4] can be activated using control
registers. After a reset (default state) the bit is <OUT_DIS>='1' and the outputs are disabled
(so any MSC data frame writing control registers is ignored and the power stages are all
switched off).
The command STOP sets the bit <OUT_DIS> to '1' disabling the outputs.
These commands have no relevant data as command data bit - they may be set to '1' or '0'.
Table 67. SW_RST
Command
CSB
C(5..0)
CD(7..0)
SW_RST
1
1 0 0 0 0 1
X X X X X X X X
Table 68.
Start, Stop
Command
CSB
C(5..0)
CD(7..0)
Start
1
1 0 0 0 1 0
X X X X X X X X
Stop
1
1 0 1 0 1 1
X X X X X X X X



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