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L9680 Datasheet(PDF) 126 Page - STMicroelectronics

Part # L9680
Description  Automotive advanced airbag IC for mid/high end applications
PDF  277 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9680 Datasheet(HTML) 126 Page - STMicroelectronics

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SPI interfaces
L9680
126/277
DocID029257 Rev 1
7.3.44
Arming signals register (ARM_STATE)
ID:
6A
Type:
R
Read:
6A00
Write:
-
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
000
0
0
0
0
0
0
00
ARMINT_x
-
-
-
State of armint signals
Updated per Safing Engine output logic diagram in case of internal safing
engine otherwise is the echo of ARMx pins
ACL_VALID
0
0
0 Valid ACL detection
0 Cleared when ACL_BAD=2
1 Set when ACL_GOOD=3
ACL_PIN_STATE
-
-
-
Echo of ACL pin
PSINH_EXP_TIME
0
0
0 State of PSINH expiration timer
0 If timer is 0
1 If timer is counting
PSINHINT
-
-
-
State of PSINHINT signal
Updated per PSINH output logic diagram in case of internal engine otherwise
is the echo of PSINH pin inverted



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