Datasheet

DocID15567 Rev 6 39/53

L99H01 Functional description of the SPI

Comments:

• RWD: Restarts the watchdog counter

• COPT[2:0]: Filter time to protect the two external halfbridges against cross current.

• FW: Selects high-side or low-side free wheeling

• MCSA: Multiplexer for current sense amplifier.

• GCSA[1:0]: Gain of the current sense amplifier.

Table 36. Address 2 <02(hex)>: ApplReg2 – read/write

Bit76543210

Name RWD COPT_2 COPT_1 COPT_0 FW MCSA GCSA_1 GCSA_0

<default> 0 0 0 0 0 0 0 0

Table 37. Cross current protection time (t

CCP

)

COPT_2 COPT_1 COPT_0 Protection time

0 0 0 250 ns

0 0 1 500 ns

0 1 0 750 ns

0 1 1 1000 ns

1 0 0 1250 ns

1 0 1 1500 ns

1 1 0 1750 ns

1 1 1 2000 ns

Table 38. Multiplexer for current sense amplifier

MCSA Selected amplifier

0 CSA2 (CSI2+ / CSI2-)

1 CSA1 (CSI1+ / CSI1-)

Table 39. Gain of current sense amplifier

GCSA_1 GCSA_0 Gain

00 10

01 20

10 50

1 1 Not applicable