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L9679P Datenblatt(PDF) 3 Page - STMicroelectronics

Teilenummer L9679P
Bauteilbeschribung  Automotive advanced airbag IC for mid/high end applications
PDF  272 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9679P Datenblatt(HTML) 3 Page - STMicroelectronics

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L9679P
Contents
8
6.8
SATBUCK regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.9
VCC buck regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.10
VSF regulator and control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.11
Oscillators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.12
Reset control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
7
SPI interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
7.1
SPI protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
7.2
Global SPI register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
7.3
Global SPI tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Global SPI read/write register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
7.3.1
Fault status register (FLTSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
7.3.2
System configuration register (SYS_CFG) . . . . . . . . . . . . . . . . . . . . . . 69
7.3.3
System control register (SYS_CTL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
7.3.4
SPI Sleep command register (SPI_SLEEP) . . . . . . . . . . . . . . . . . . . . . 74
7.3.5
System state register (SYS_STATE) . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
7.3.6
Power state register (POWER_STATE) . . . . . . . . . . . . . . . . . . . . . . . . . 76
7.3.7
Deployment configuration registers (DCR_x) . . . . . . . . . . . . . . . . . . . . 79
7.3.8
Deployment command (DEPCOM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
7.3.9
Deployment status registers (DSR_x) . . . . . . . . . . . . . . . . . . . . . . . . . . 83
7.3.10
Deployment current monitor registers (DCMTSxy) . . . . . . . . . . . . . . . . 85
7.3.11
Deploy enable register (SPIDEPEN) . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
7.3.12
Deployment ground loss register (LP_GNDLOSS) . . . . . . . . . . . . . . . . 86
7.3.13
Device version register (VERSION_ID) . . . . . . . . . . . . . . . . . . . . . . . . . 87
7.3.14
Watchdog retry configuration register (WD_RETRY_CONF) . . . . . . . . 88
7.3.15
Watchdog timer configuration register (WDTCR) . . . . . . . . . . . . . . . . . 88
7.3.16
WD1 timer control register (WD1T) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
7.3.17
WD state register (WDSTATE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
7.3.18
Clock configuration register (CLK_CONF) . . . . . . . . . . . . . . . . . . . . . . . 91
7.3.19
Scrap seed read command register (SCRAP_SEED) . . . . . . . . . . . . . . 92
7.3.20
Scrap key write command register (SCRAP_KEY) . . . . . . . . . . . . . . . . 93
7.3.21
Scrap state entry command register (SCRAP_STATE) . . . . . . . . . . . . . 93
7.3.22
Safing state entry command register (SAFING_STATE) . . . . . . . . . . . . 94
7.3.23
WD2 recover write command register (WD2_RECOVER) . . . . . . . . . . 94
7.3.24
WD2 seed read command register (WD2_SEED) . . . . . . . . . . . . . . . . . 95
7.3.25
WD2 key write command register (WD2_KEY) . . . . . . . . . . . . . . . . . . . 95



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