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L9788 Datasheet(PDF) 216 Page - STMicroelectronics

Part # L9788
Description  Multifunction IC for automotive engine management system
PDF  264 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9788 Datasheet(HTML) 216 Page - STMicroelectronics

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Micro second channel (MSC) interface
L9788
216/264
DS12308 Rev 4
Lock Command
Registers that have this function are locked as default.
Registers are unlocked by the UNLOCK command and locked again by the LOCK
command. Before the LOCK command the registers stay unlocked.
Unlock Command
Enables the write right to registers under lock.
Question and Answer Watch Dog Enable command
WD is enabled as default.
Question and Answer Watch Dog Disable command
SW-Reset command
This command generates internal reset initiated by the CPU's software that clears all the
configuration and diagnostic registers and switches off all the drivers.
W
C0 C1 C2 C3 C4 C5 C6
D0
D1
D2
D3
D4
D5
D6
D7
LOCK
1
0
0
1
1
1
1
010
10101
W
C0 C1 C2 C3 C4 C5 C6
D0
D1
D2
D3
D4
D5
D6
D7
UNLOCK
1
0
0
1
1
1
1
101
01010
W
C0 C1 C2 C3 C4 C5 C6
D0
D1
D2
D3
D4
D5
D6
D7
WDA_EN
1
0
0
1
1
1
1
0
1
1
0
0
1
1
0
W
C0 C1 C2 C3 C4 C5 C6
D0
D1
D2
D3
D4
D5
D6
D7
WDA_DIS
1
0
0
1
1
1
1
1
0
0
1
1
0
0
1
W
C0 C1 C2 C3 C4 C5 C6
D0
D1
D2
D3
D4
D5
D6
D7
SW-RESET
1
0
1
1
1
0
1
011
01101



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