LP3936 Datasheet, PDF (9/30 Pages) National Semiconductor (TI) – Lighting Management System for Six White LEDs and One RGB or FLASH LED

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LP3936
SNVS259D – NOVEMBER 2003 – REVISED MAY 2013
CS
SCL
DI
DO
1
2 3 45
67
8 9 10 11 12 13 14 15 16
MSB
MSB
A6 A5 A4 A3 A2 A1 A0 ¹ D7 D6 D5 D4 D3 D2 D1 D0
R/W
prior prior prior prior prior prior prior prior prior prior prior prior prior prior prior prior
A6 A5 A4 A3 A2 A1 A0 R/W D7 D6 D5 D4 D3 D2 D1 D0
Figure 4. MicroWire Write Cycle
CS
1
2 3 45
67
8 9 10 11 12 13 14 15 16
SCL
MSB
MSB
0
DI
A6 A5 A4 A3 A2 A1 A0 R/W D7 D6 D5 D4 D3 D2 D1 D0
Don't Care
prior prior prior prior prior prior prior prior prior prior prior prior prior prior prior prior
DO
A6 A5 A4 A3 A2 A1 A0 R/W D7 D6 D5 D4 D3 D2 D1 D0
Figure 5. MicroWire Read Cycle 1
CS
1
2 3 45
67
8 9 10 11 12 13 14 15 16
SCL
MSB
MSB
DI
A6
A5
A4
A3
A2
A1
A0
0
R/W
D7
D6
D5
D4
D3
D2
D1 D0
prior prior prior prior prior prior prior prior
DO
A6
A5
A4
A3
A2
A1
0
A0 _R/W D7
D6 D5
D4
D3
D2
D1
D0
Figure 6. MicroWire Read Cycle 2
CS
SCL
DO
2
1
5
4
8
A6
10
A5
A4
7
6
DI
MSB IN BIT 14
8
10
BIT 8 MSB OUT
BIT 9 BIT 8 BIT 7
3
12
BIT 1
11
9
LSB OUT
BIT 1 LSB IN
Address
R/W
Data
Figure 7. MicroWire Timing Diagram
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