L9679E datasheet(26/127 Pages) STMICROELECTRONICS

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6.3

Global SPI tables

A summary of all the registers contained within the global SPI map is shown below and is referenced throughout

the specification as they apply. The SPI register tables also specify the effect of the internal reset signals

assertion on each bit field.

Note:

The symbol ‘-‘ is used to indicate that the register is not affected by the relevant reset signal.

6.3.1

Global SPI global status word

The Global SPI frame contains an 11-bit word that returns global status information. The Global Status Word

(GSW) of the Global SPI is the most significant 11 bits of MISO_G data.

Table 8. Global SPI global status Word

MISO_G GSW

Name

POR WSM SSM

Description

SPIFLT

SPI Fault, set if previous SPI frame had wrong parity check or wrong number of bits,

cleared upon read

0: No fault

1: Fault

DEPOK

General Deployment Successful Flag, logical OR of the corresponding CHxDS bits (bit

15) in DSRx Registers

0: All the DSRx-CHDS bits are 0

1: At least one of the DSRx-CHDS bits is 1

Unused

POWERFLT

Fault present in Power State Register, logical OR between bits from 15 to 14 of

POWER_STATE Register

0: All the bits from 15 to 14 in the POWER_STATE Registers are 0s

1: At least one of the bits from 15 to 14 in the POWER_STATE Registers is 1

FLT

Fault present in Fault Status Register (FLTSR), logical OR between all bits of FLTSR

0: All the bits in the Fault Status Register (FLTSR) are 0s

1: At least one of the bits in the Fault Status Register (FLTSR) is 1

CONVRDY2

ADC Conversion of request C or D has been completed so new results are available

0: No new data available

1: New data available

CONVRDY1

ADC Conversion of request A or B has been completed so new results are available

0: No new data available

1: New data available

ERR_WID

Write address of previous SPI frame is not permitted in current operating phase

0: No Error

1: Error

ERR_RID

Read address received in the actual SPI frame is unused so data in the response is don't

care

0: No Error

1: Error

L9679E

SPI interface

DS12485 - Rev 8

page 26/127

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