TLE7209-2R_07 Datasheet, PDF (17/32 Pages) Infineon Technologies AG – 7 A H-Bridge for DC-Motor Applications

TLE 7209-2R
Circuit Description
2.4.2.7
Data-byte: Device Identifier and Version
(SPI instructions RD_IDENT and RD_VERSION)
The IC‘s identifier (device ID) and version number are used for production test purposes
and features plug & play functionality depending on the systems software release. The
two numbers are read-only accessible via the SPI instructions RD_IDENT and
RD_VERSION as described in Section 2.4.2.4.
The device ID is defined to allow identification of different IC-Types by software and is
fixed for the TLE 7209-2R.
The Version number may be utilized to distinguish different states of hardware and is
updated with each redesign of the TLE 7209-2R. The contents is divided into an upper
4 bit field reserved to define revisions (SWR) corresponding to specific software releases
and a lower 4 bit field utilized to identify the actual mask set revision (MSR).
Both (SWR and MSR) will start with 0000b and are increased by 1 every time an
according modification of the hardware is introduced.
Reading the IC Identifier (SPI Instruction: RD_IDENT):
Table 11 Device Identifier Format
MSB
7
6
5
4
3
2
1
0
ID7
ID6
ID5
ID4
ID3
ID2
ID1
ID0
Table 12
Bit
7...0
Device Identifier Description
Name
Description
device-ID(7...0)
ID-No.: 10100010
Reading the IC version number (SPI Instruction: RD_VERSION):
Table 13
MSB
7
SWR3
IC version number Format
6
SWR2
5
SWR1
4
SWR0
3
MSR3
2
MSR2
1
MSR1
0
MSR0
Table 14 IC version number Description
Bit
Name
Description
7...4
SWR(3...0)
This register is set to 0
3...0
MSR(3...0)
Version corresponding to Mask set
Data Sheet
17
Rev. 1.4, 2007-04-05