L99MD02 datasheet(32/46 Pages) STMICROELECTRONICS

32 / 46 page

SPI control and status register

L99MD02

32/46

Doc ID 16082 Rev 5

Table 25.

Control register 1 (read/write); address 01h

Bit

Name

Comment

If a bit is set, the selected output driver is switched on. If the

corresponding PWM enable bit is set the driver will be PWMed.

If the bits of HS-and LS-driver of the same half bridge are set, the HS

and the LS-driver will be deactivated.

OUT4 – HS on/off

OUT4 – LS on/off

OUT6 – HS on/off

OUT6 – LS on/off

OUT5 – HS on/off

OUT5 – LS on/off

OUT3 – HS on/off

OUT3 – LS on/off

OUT2 – HS on/off

OUT2 – LS on/off

OUT1 – HS on/off

OUT1 – LS on/off

Table 26.

Control register 3 (read/write); address 03h

Bit

Name

Comment

High current mode of low side switch

“0”: the selected low side switch is in low current mode. The

overcurrent and open-load thresholds are reduced by ½. The selected

current monitor ratio is doubled.

“1” (default setting) the selected low side switch is in high current

mode.

High current LS 4

High current LS 6

High current LS 5

High current LS 3

High current LS 2

High current LS 1

VS OV shutdown/warn

In case of VS overvoltage

“0”: all outputs will be switched off + status bit set.

“1”: only status bit will be set.

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