LP3944_14 Datasheet, PDF (10/17 Pages) Texas Instruments – RGB/White/Blue 8-LED Fun Light Driver

LP3944
SNVS264 – MAY 2004
Address (Hex)
0x08
0x09
Table 1. LP3944 Register Table (continued)
Register Name
Register 8
Register 9
Read/Write
R/W
R/W
None
None
Register Function
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Binary Fomat for Input Registers (Read Only)—Address 0x00 and 0x01
Bit #
Default value
7
X
LED7
6
X
LED6
Table 2. Address 0x00
5
X
LED5
4
X
LED4
3
X
LED3
2
X
LED2
1
X
LED1
0
X
LED0
Binary Format for Frequency Prescaler and PWM Registers — Address 0x02 to 0x05
Table 3. Address 0x02 (PSC0)
Bit #
7
6
5
4
3
2
1
0
Default value
0
0
0
0
0
0
0
0
Table 4. Address 0x03 (PWM0)
Bit #
7
6
5
4
3
2
1
0
Default value
1
0
0
0
0
0
0
0
Table 5. Address 0x04 (PSC1)
Bit #
7
6
5
4
3
2
1
0
Default value
0
0
0
0
0
0
0
0
Table 6. Address 0x05 (PWM1)
Bit #
7
6
5
4
3
2
1
0
Default value
1
0
0
0
0
0
0
0
Binary Format for Selector Registers — Address 0x06 to 0x07
Bit #
Default value
7
6
0
0
B1
B0
LED3
Table 7. Address 0x06 (LS0)
5
4
0
0
B1
B0
LED2
3
2
0
0
B1
B0
LED1
1
0
0
0
B1
B0
LED0
Bit #
Default value
7
6
0
0
B1
B0
LED7
Table 8. Address 0x07 (LS1)
5
4
0
0
B1
B0
LED6
3
2
0
0
B1
B0
LED5
1
0
0
0
B1
B0
LED4
Table 9. LED States With Respect To Values in "B1" and "B0"
B1
B0
Function
0
0
Output Hi-Z
(LED off)
0
1
Output LOW
(LED on)
10
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Copyright © 2004, Texas Instruments Incorporated