L9660 datasheet(45/49 Pages) STMICROELECTRONICS

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L9660

Functional description

Bit D1:

0 = FEN2 input or FEN2 latch timer inactive

1 = FEN2 input or FEN2 latch timer active

Bit D0:

0 = FEN1 input or FEN1 latch timer inactive

1 = FEN1 input or FEN1 latch timer active

Note:

The FEN status is the result of the state of the FEN input pin OR’d with the FEN latch timer.

The FEN latch timer remains inactive until a transition of ‘1’ to ‘0’ on the FEN input

(assuming the pin was high for a minimum of 16µs). At that time the FEN latch timer is

active and keeps the internal FEN signal active based on the programmed time (0ms,

128ms, 256ms or 512ms) for that particular FEN function.

With Bit D9=0 CFS

Bit D7:D4:‘0000’

Bit D3:

0 = Current through channel 3 is below IMEAS

1 = Current through channel 3 is above IMEAS

Bit D2:

0 = Current through channel 2 is below IMEAS

1 = Current through channel 2 is above IMEAS

Bit D1:

0 = Current through channel 1 is below IMEAS

1 = Current through channel 1 is above IMEAS

Bit D0:

0 = Current through channel 0 is below IMEAS

1 = Current through channel 0 is above IMEAS

Note:

Current status for channel is captured on the falling edge of chip select.

Monitor mode 4

Monitor mode main information:



Revision



L9660 ID

The SPI message definition for MOSI commands and MISO responses in Monitor Mode 4

are defined below:

MSB

LSB

D15

D14

D13

D12

D11

D10

MOSI Command for Monitor Mode 4

MISO Response for Monitor Mode 4

ID3

ID2

ID1

ID0

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