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L9678P 데이터시트(PDF) 69 Page - STMicroelectronics

부품명 L9678P
상세설명  Automotive user configurable airbag IC
PDF  203 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9678P 데이터시트(HTML) 69 Page - STMicroelectronics

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L9678P, L9678P-S
SPI interface
202
5.1.16
WD1 timer control register (WD1T)
Address:
2B
Type:
W
Buffer:
$2B00
Reset:
$0056
5.1.17
WD1 state register (WDSTATE)
Address:
2C
Type:
R
Buffer:
$2C00
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
WD1CTL[1:0]
MISO
0
0
0
0
WD1_TIMER
0
0
0
0
0
0
WD1CTL[1:0]
WD1CTL[1:0]
00
00
00 WD1 Control command
Updated by SSM_RESET or SPI write
00 NOP
01 Code 'A'
10 Code 'B'
11 NOP
WD1_TIMER $00 $00 $00 WD1 Window timer value
Cleared by SSM_RESET or by WD1 refresh, incremented every 8µs or 64µs
while in WD1_RUN or WD1_TEST states
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
WD1_ERR_CNT[3:0]
WD_STATE[2:0]
0
0
0
0
0
0
0
0
WD1_ERR_CNT[3:0] 000 000
-
Watchdog error counter
Updated according to Watchdog State Diagram
WD1_STATE[2:0] 000 000
-
Watchdog state
Updated according to Watchdog State Diagram
000 INITIAL



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