L99UDL01 datasheet(76/88 Pages) STMICROELECTRONICS

76 / 88 page

Programmers guide

L99UDL01

76/88

DS12511 Rev 5

Functional Error 2 (FE2)

The FE2 indicates logical OR combination of errors coming from supply monitoring type

faults as seen in Diagnostic Register 12H. These include:



Low voltage on VS



Over voltage on VS



Low voltage on VDD



Low voltage on 3V3



Charge Pump Low voltage

Functional Error 1 (FE1)

The FE1 is a logical OR combination of errors coming from output type faults. These faults

can be found in Diagnostic register 10H. These include:



Overcurrent fault



VDS fault

Device Error (DE)

The DE is a logical OR combination of errors related to device related to thermal events

such as thermal shutdown for each output as seen in Diagnostic register 02H.

Global Warning (GW)

The GW is a logical OR combination of all warning flags implemented in the design. These

include:



Thermal Warning

6.3.2

This register contains the fault diagnostic information for the integrated H-Bridges.

This register can be read or read and cleared. Fault indications will not be cleared unless

asked to do so by op-code.

Figure 27. 10H integrated driver Diagnostic status register

OC1

OC2

D 15 D 14 D 13 D 12 D 11 D 10

D 9

D 8

D 7

D 6

D 5

D 4

D 3D 2

D 1D 0

010000

Default Values

0000000000

00000

Table 52. 10H register bit description

Bit No.

Function

Level

State after Read

& Clear

Default

(after POR)

SPI_Fail

SCK count, SDI Stuck@ or parity error fails

Cleared

WRT_Fail

Data write fail

Cleared

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