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L9230

Device Identifier

The IC‘s identifier is used for production test purposes and features plug & play functionality depending on the

systems software release. It is made up on a device-number and a revision number each one read-only acces-

sible via standardised instructions.

The Device number is defines once to allow indentification of different IC-Types by software.

The Revision number may be utilised to distinguish different states of hardware. The contents is divided into an

upper 4 bit field reserved to define revisions correspondending to specific software releases.

The lower 4 bit field is utilised to indentify the actual maskset.

hardware is introduced.

Reading the IC Identifier (SPI Instruction: RD_IDENT):

Reading the IC revision number (SPI Instruction: RD_VERSION):

IC Identifier1 (Device ID)

76

543210

ID7

ID6

ID5

ID4

ID3

ID2

ID1

ID0

Bit

Name

Description

7...0

ID(7...0)

ID-No.: 10100001

L9230

IC’s revision number

76

543210

SWR3

SWR2

SWR1

SWR0

MSR3

MSR2

MSR1

MSR0

Bit

Name

Description

7...4

SWR(3...0)

Revision corresponding to Software release: 0Hex

3...0

MSR(3...0)

Revision corresponding to Maskset: 0Hex