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SPSB081 датащи(PDF) 48 Page - STMicroelectronics

номер детали SPSB081
подробное описание детали  Automotive power management IC with LIN and CAN-FD
PDF  135 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SPSB081 датащи(HTML) 48 Page - STMicroelectronics

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ROM address
Description
Access
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
12H
<WD type 2>
R
→
91H
11H
<WD type 1>
R
→
3CH
10H
<SPI mode>
R
→
B0H
…
→
0AH
<silicon Ver.>
R
→
major revision
minor revision
…
→
05H
<device No.4>
R
→
50H
04H
<device No.3>
R
→
37H
03H
<device No.2>
R
→
52H
02H
<device No.1>
R
→
55H
01H
<device family>
R
→
01H
00H
<company code>
R
→
00H
4.3.1.1
Device identification registers
These registers represent a unique signature to identify the device and silicon version.
<Company Code>: 00H (STMicroelectronics)
<Device Family>: 01H (BCD power management)
<Device No. 1>: 55H (ASCII code for U)
<Device No. 2>: 52H (ASCII code for R)
<Device No. 3>: 37H (ASCII code for 7)
<Device No. 4>: 50H (ASCII code for P)
4.3.1.2
SPI modes
By reading out the <SPI mode> register general information of SPI usage of the device application registers can
be read.
Table 20. SPI mode register
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
BR
DL2
DL1
DL0
0
0
S1
S0
1
0
1
1
0
0
0
0
<SPI mode>: B0H (burst mode read available, 32 bit, no data consistency check).
4.3.1.3
SPI burst read
Table 21. Burst read bit
Bit 7
Description
0
BR not available
1
BR available
The SPI burst read bit indicates if a burst read operation is implemented. The intention of a burst read is, for
example, used to perform a device internal memory dump to the SPI master.
The start of the burst read is like a normal read operation. The difference is, that after the SPI data length the
CSN is not pulled high and the SCK is continuously clocked. When the normal SCK max count is reached (SPI
data length), the consecutive addressed data is latched into the shift register. This procedure is performed every
time when the SCK payload length is reached.
SPSB081
Address definition
DS14048 - Rev 1
page 48/135



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