L9662 datasheet(60/80 Pages) STMICROELECTRONICS

Il numero della parte	L9662

Spiegazioni elettronici	Octal squib driver and quad Manchester/PSI5 encoded sensor

PDF	80 Pages

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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60 / 80 page

Functional description

L9662

60/80

DocID028325 Rev 1

Figure 15. Example of Manchester decoding using satellite protocol

Communication protocols

In order to support the various satellite sensors, the device supports two different

communication standards (MS and PSI5 Mode). The Manchester standard consists of two

protocols (CRC / Even Parity), while the PSI5 standard consists of one protocol (Even

Parity) for a total of three communication protocols. The three protocols which are described

in this section are: 1) Protocol A - CRC. 2) Protocol B Generic – Parity: to support Bosch

PAS3 and PAS4 sensors. 3) Protocol C: PSI5 – Parity: support for various sensors. Bit D3 of

the MCR configures the device for either MS or PSI5 communication standard. Bits D10 to

D13 in the MCR register are used to configure the specific device channel (Ch. 0,1,2,3) to

use any of these specified protocols.

This version of the device supports the following PSI5 Operational Modes.

PSI5-A8P-250/1L

PSI5-A10P-250/1L

PSI5-P10P-250/1L

PSI5-P10P-500/2L

L9662 Scheda tecnica(PDF) 60 Page - STMicroelectronics