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L9300 数据表(PDF) 99 Page - STMicroelectronics

部件名 L9300
功能描述  Automotive flexible U-chip for braking and transmission
PDF  182 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L9300 数据表(HTML) 99 Page - STMicroelectronics

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16
SPI interface and register mapping
16.1
SPI functional description
The SPI interface is used to configure the device, control the outputs and read the diagnostic and status registers.
The SPI interface comprises:
•
Supply: VDDIO
•
Inputs: SCLK, SDI, CS
•
Output: SDO
The SPI Frame is hereafter described:
Figure 62. SPI Frame
SDI Frame (from Master SPI)
SDO Frame (to Master SPI)
31
Wr/Rdn
15
Data Bit[12:0]
31
Short Frame Error
15
Data Bit[12:0]
30
Add[6:0]
14
30
Long Frame Error
14
29
13
29
CRC Error
13
28
12
28
Channel
Exceptions[5:0]
12
27
11
27
11
26
10
26
10
25
9
25
9
24
8
24
8
23
Reserved = 0
7
23
7
22
Data[19:13]
6
22
Data[19:13]
6
21
5
21
5
20
4
20
4
19
3
19
3
18
2
CRC[2:0]
18
2
CRC[2:0]
17
1
17
1
16
0
16
0
GADG0708171218PS
CRC error and frame length error are reported on SDO of the frame following the corrupted one.
L9300
SPI interface and register mapping
DS12258 - Rev 4
page 99/182



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