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L9959 数据表(PDF) 39 Page - STMicroelectronics

部件名 L9959
功能描述  Single and dual PMOS high-side H-bridge
PDF  49 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L9959 数据表(HTML) 39 Page - STMicroelectronics

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L9959
SPI functional description
48
Table 36. Special register (SPECIAL_REG)
Bit
7
6
5
4
3
2
1
0
Name
Not specified
OLDAFILT
ER
Not
specified
SR
Not
specified
SPRCSPE
C
Controller access:
write-access: WR_SPECIAL
read-access: RD_SPECIAL
Bit
Name
Content
7
Not
specified
-
6
Not
specified
-
5
Not
specified
-
4
OLDAFILT
ER
Open-load filter in active mode only.
OLDAFILTER is a don't care in case of Off state
1: open-load in on detected after one retry
0: openload in on detected after 40 ms
3
Not
specified
-
2
SR
Voltage SR selection
1: fast slew rate
0: slow slew rate
1
Not
specified
-
0
SPRCSPE
C
SPREADSPECTRUM mode selection
1: spread spectrum = active
0: spread spectrum = disabled
Spread spectrum = active provides the internal state machine with slightly tittering clock.
Spread spectrum = disabled. The internal state machine runs with constant clock
frequency.
Reset
(5.4.1)
7
6
5
4
3
2
1
0
POR
0
0
010001
SPIR
0
0
010001
ENDISR
X
X
XXXXXX
RDR
X
X
XXXXXX



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