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L9680 bảng dữ liệu(PDF) 148 Page - STMicroelectronics

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SPI interfaces
L9680
148/277
DocID029257 Rev 1
7.5
Remote sensor SPI tables
A summary of all the registers contained within the remote sensor SPI map are shown
below and are 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 (the symbol ‘-‘is
used to indicate that the register is not affected by the relevant reset signal’).
7.5.1
Remote sensor SPI global status word
The Remote Sensor SPI of L9680 contains an 11-bit word that returns global status
information. The Global Status Word (GSW) of the Remote Sensor SPI is the most
significant 11 bits of MISO_RS data.
Table 9. GSW - Remote sensor SPI global status word
MISO_RS GSW
Name
POR
WSM SSM
Description
31
10
SPIFLT
0
0
0
SPI Fault, set if previous SPI frame had wrong parity check or
wrong number of bits, cleared upon read ‘
0 No fault
1 Fault
30
9
0
0
0
0
Unused
29
8
RSFLT
0
0
0
Remote Sensor Interface Fault Present, logical OR of the
corresponding FLTBIT bits (bit 15) for all faults but NODATA
0 All the RSDRx-FLTBIT bits are 0
1 At least one of the RSDRx-FLTBIT bits is 1 and the
associated fault code is different from NODATA
28
7
0
0
0
0
Unused
27
6
0
0
0
0
Unused
26
5
0
0
0
0
Unused
25
4
0
0
0
0
Unused
24
3
0
0
0
0
Unused
23
2
0
0
0
0
Unused
22
1
0
0
0
0
Unused
21
0
ERR_RI
D
00
0
Read address received in the actual SPI frame is unused so
data in the response is don't care
0 No Error
1 Error



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