L99MD01 datasheet(33/54 Pages) STMICROELECTRONICS

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L99MD01

SPI control and status register

Doc ID 17242 Rev 6

33/54

5VS2 recovery

VS2 recovery mode:

“0”: no recovery after VS2 overvoltage

“1”: If the VS2 voltage falls below the threshold after a VS2 overvoltage condition,

the SMPS goes again in active mode and the status bit is cleared

SMPS configuration

Wobble bit 1

Wobble defines the modulation frequency deviation of the internal oscillator,

definition see Table 29.

Wobble bit 0

Frequency deviation bit 1

Frequency deviation of the internal oscillator, definition see Table 30

Frequency deviation bit 0

Rnd/Lin

Random/linear mode:

“0”: the oscillator is changed in linear mode like a triangle.

“1”: the oscillator frequency is distributed randomly.

Table 28.

Control register 3 (continued)

Bit

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

Name

Comment

Table 29.

Wobble

Bit 4

Bit 3

Wobble

1.95 KHz

3.9 KHz

7.8 KHz

15.6 KHz

Table 30.

Frequency deviation

Bit 2

Bit 1

Frequency deviation

0 %

5 %

10 %

20 %

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