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L9678P Datasheet(PDF) 57 Page - STMicroelectronics

Part # L9678P
Description  Automotive user configurable airbag IC
PDF  203 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9678P Datasheet(HTML) 57 Page - STMicroelectronics

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 57 / 203 page
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DocID029274 Rev 3
57/203
L9678P, L9678P-S
SPI interface
202
5.1.5
System status register (SYS_STATE)
Address:
04
Type:
R
Buffer:
$0400
Reset:
-
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
MOSI
-
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
MISO
0
0
0
0
0
0
0
0
0
00
0
0
0
OPER_CTL_STAT
E[2:0]
000 000 000 Reports Operating Control State
Updated per Power Up Phases diagram
000 = INIT
001 = DIAG
010 = SAFING
011 = SCRAP
100 = ARMING
101 unused
110 unused
111 unused
POWER_CTL_STA
TE[2:0]
000
-
-
Reports Power Control State
Updated per Power Control State Flow Diagram
000 = AWAKE
001 = STARTUP
010 = RUN
011 = ER
100 = POWER MODE SHUTDOWN
101 unused
110 unused
111 unused



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