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L9969X Datasheet(PDF) 46 Page - STMicroelectronics

Part # L9969X
Description  Automotive chip for single and dual H-bridge
PDF  70 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9969X Datasheet(HTML) 46 Page - STMicroelectronics

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3.2.7.6.2
Status register (read and write access)
Table 32. Register DIA_REG1
Bit
7
6
5
4
3
2
1
0
Bit-Name
NABE_DIS
OT
Var1
Var0
DIA21
DIA20
DIA11
DIA10
POR
x
1
1
1
1
1
1
1
SPIR
x
1
x
x
1
1
1
1
ENDISR
x
1
x
x
1
1
1
1
RDR
x
x
x
x
x
x
x
x
DIACLR1
x
1
x
x
1
1
1
1
Controller access: read/write
(write-access: WR_DIA1)
(read-access: RD_DIA1)
Bit
Name
Description
7
NABE_DIS
0: NABE = Low or/and DIS = High
1: NABE = High and DIS = Low
(not latched) (r)
6
OT
0: Over Temperature
1: no Over Temperature
(latched) (r)
5
VAR1
r/w for special use
(latched) (r/w)
4
VAR0
r/w for special use
(latched) (r/w)
3
DIA21
See Table 33 below
(r)
2
DIA20
1
DIA11
0
DIA10
Table 33. Diagnosis bits (DIA_REG1)
DIA21
DIA20
DIA11
DIA10
Description
Remark
0
0
0
0
Not used
0
0
0
1
Short Circuit to Ground at OUT1 (SCG1)
latched
0
0
1
0
Short Circuit to Ground on OUT2 (SCG2)
latched
0
0
1
1
Not used
0
1
0
0
0
1
0
1
Short Circuit to Battery on OUT1 (SCB1)
latched
0
1
1
0
Short Circuit to Battery on OUT2 (SCB2)
latched
0
1
1
1
Short Circuit across load (SCL)
latched
1
0
0
0
Short Circuit to Battery at disabled output
latched
1
0
0
1
Short Circuit to Ground at disabled output
latched
1
0
1
0
Open Load (at disabled output or in active)
latched
1
0
1
1
Not used
1
1
0
0
1
1
0
1
Undervoltage at pin VS
Not latched
1
1
1
0
Not used
1
1
1
1
No failure
-
L9969x
Functional description
DS14029 - Rev 6
page 46/70



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