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Table 2.
Satellite jumpers
4.6 Arming
interface
The arming interface is used as a fail-safe to prevent inadvertent airbag deployment. Along with
deployment command, these signals provide redundancy. Pulse stretch timer is provided for
each channel/loop. Either ARM signal or deployment command shall start the pulse stretch
timer.
Arming interface has a dedicated 8-bit SPI interface. The devices can deploy a channel, only
when the deployment enable is asserted and any of the following conditions are satisfied:
●
the respective deployment command is sent during a valid pulse stretch timer, which
initiated by ARM signal
●
the respective SPI ARM command is sent during a valid pulse stretch timer, which initiate
by deployment command.
Name
Figure
Description
J14
Figure 4
Interrupt SPI communication for Satellite and Deployment
J5
Figure 4
Enable load simulation for L9658 satellite channel 1 through DICH1
J6
Figure 4
Enable load simulation for L9658 satellite channel 2 through DICH2
J7
Figure 4
Enable load simulation for L9658 satellite/sensor channel 3 through
DICH3
J8
Figure 4
Enable load simulation for L9658 satellite/sensor channel 4 through
DICH4
J54
Figure 4
Enable load simulation for L9654 satellite channel 1 through DICH5
J55
Figure 4
Enable load simulation for L9654 satellite channel 2 through DICH6
Figure 4.
Satellite jumpers location
J5
J6
J8
J7
J55
J54
J14
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