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LP55231 Arkusz danych(PDF) 21 Page - Texas Instruments

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Numer części LP55231
Szczegółowy opis  LP55231 Programmable 9-Output LED Driver
PDF  53 Pages
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Producent  TI [Texas Instruments]
Strona internetowa  http://www.ti.com
Logo TI - Texas Instruments

LP55231 Arkusz danych(HTML) 21 Page - Texas Instruments

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LP55231
www.ti.com
SNOSCR5 – MARCH 2013
Register Set
The LP55231 is controlled by a set of registers through the two-wire serial interface port. Some register bits are
reserved for future use. Table 3 below lists device registers, their addresses and their abbreviations. A more
detailed description is given in chapter Control Register Details.
Table 3. Control Register Map
Hex
Read/Writ
Default Value
Register Name
Bit(s)
Bit Mnemonic and Description
Address
e
After Reset
CHIP_EN
[6]
R/W
x0xxxxxx
0 = LP55231 not enabled
1 = LP55231 enabled
ENGINE1_EXEC
[5:4]
R/W
xx00xxxx
ENABLE / ENGINE
Engine 1 program execution control
00
CNTRL1
ENGINE2_EXEC
[3:2]
R/W
xxxx00xx
Engine 2 program execution control
ENGINE3_EXEC
[1:0]
R/W
xxxxxx00
Engine 3 program execution control
ENGINE1_MODE
[5:4]
R/W
xx00xxxx
ENGINE 1 mode control
ENGINE2_MODE
01
ENGINE CNTRL2
[3:2]
R/W
xxxx00xx
ENGINE 2 mode control
ENGINE3_MODE
[1:0]
R/W
xxxxxx00
ENGINE 3 mode control
OUTPUT
D9_RATIO_EN
02
DIRECT/RATIOMETRIC
[0]
R/W
xxxxxxx0
Enables ratiometric dimming for D9 output.
MSB
D8_RATIO_EN
[7]
R/W
0xxxxxxx
Enables ratiometric dimming for D8 output.
D7_RATIO_EN
[6]
R/W
x0xxxxxx
Enables ratiometric dimming for D7 output.
D6_RATIO_EN
[5]
R/W
xx0xxxxx
Enables ratiometric dimming for D6 output.
D5_RATIO_EN
[4]
R/W
xxx0xxxx
OUTPUT
Enables ratiometric dimming for D5 output.
03
DIRECT/RATIOMETRIC
D4_RATIO_EN
LSB
[3]
R/W
xxxx0xxx
Enables ratiometric dimming for D4 output.
D3_RATIO_EN
[2]
R/W
xxxxx0xx
Enables ratiometric dimming for D3 output.
D2_RATIO_EN
[1]
R/W
xxxxxx0x
Enables ratiometric dimming for D2 output.
D1_RATIO_EN
[0]
R/W
xxxxxxx0
Enables ratiometric dimming for D1 output.
OUTPUT ON/OFF
D9_ON
04
[0]
R/W
xxxxxxx1
CONTROL MSB
ON/OFF Control for D9 output
Copyright © 2013, Texas Instruments Incorporated
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Product Folder Links: LP55231



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