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L9679P Fiches technique(PDF) 92 Page - STMicroelectronics

No de pièce L9679P
Description  Automotive advanced airbag IC for mid/high end applications
PDF  272 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9679P Fiches technique(HTML) 92 Page - STMicroelectronics

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SPI interfaces
L9679P
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DocID029275 Rev 1
7.3.19
Scrap seed read command register (SCRAP_SEED)
ID:
2E
Type:
R
Read:
-
Write:
2E00
MAIN_SS_DIS
0
-
-
Main oscillator Spread Spectrum disable
Updated by POR or SPI write
0 Spread Spectrum enabled
1 Spread Spectrum disabled
ERBST_F_SEL[1:0]
00
-
-
ER Boost switching frequency select
Updated by POR or SPI write
00 1.88 MHz
01 2.13 MHz
10 2.00 MHz
11 2.00 MHz
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
0
0
0
SEED[7:0]
N/A N/A N/A
SEED[7:0] $00 $00 $00 Random scrap seed value - generated from a free-running 8-bit counter



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