L9662 datasheet(51/80 Pages) STMICROELECTRONICS

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L9662

Functional description

Depending on the state of FEN the DEPLOY_STATUSx flag could be ‘1’ for a minimum of 1x

tDEPLOY and a maximum of up to 2 x tDEPLOY (see Figure 8). The Deployment status is

captured on the falling edge of CS_D.

Bit D8 is used to select the meaning of bit D7 through bit D0 in the status response

message. When this bit is set to ‘1,’ bits D7 through D0 in the status response message will

report the state of the DEPLOY_STATUSx flag.

When this bit is ‘0,’ bit D7 through bit D0 in the status response message will report the

DEPLOY_SUCCESSx flag. The following table 16 shows the conditions for the

DEPLOY_STATUSx flag and the DEPLOY_SUCCESSx flag.

Once the Deploy Success Flag is set, it will inhibit the subsequent deployment command

until a SPI command to clear this deployment success flag is received. Bits D7 through bit

D0 are used to clear/keep the deploy success flag. When these bits are set to ‘1,’ the flag

can be cleared. Otherwise, the state of these flags is not affected. The Success flag must

be cleared to allow re-activation of the drivers

Monitor mode 2

Monitor mode main information:



Current limit measurement of channels

The SPI message definition for MOSI commands and MISO responses in Monitor Mode 2

are defined below.

Table 28. DEPLOY_STATUSx flag and the DEPLOY_SUCCESSx flag conditions

DEPLOY_STATUSx flag

DEPLOY_SUCCESSx flag

Description

No Deployment in process or has been

initiated since POR or since last Clear of

Success flag

Deployment has successfully completed

Deployment in process

Deployment terminated / LSD shutdown

MSB

LSB

D15

D14

D13

D12

D11

D10

MOSI Command for Monitor Mode 2

CLR

Current

Measurement

Channel Select

MISO Response for Monitor Mode 2

Current

Measurement

Channel

Current Measurement Data

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