DRV8860_16 Datasheet, PDF (19/41 Pages) Texas Instruments – 8-Channel Serial Interface Low-Side Driver

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DRV8860, DRV8860A
SLRS065E – SEPTEMBER 2013 – REVISED NOVEMBER 2015
8.5.1.3.1 Special command: Write Control Register
When Write-Control-Register command is issued, the following serial data will be latched into timing and duty
control register.
LATCH
xxxx x
CLK
xxxx x
DIN
x_xx_xx_xx_xx_xx_xx_xx_xx_xxxxxxxxxx_xxxx _{Control Register}
1
12
12
123
1
2
3
4
5
6
7
8
A_C8 A_C7 A_C6 A_C5 A_C4 A_C3 A_C2 A_C1
Control A
Figure 18. Writing Control Register – Single Device
LATCH
xx xxx _CLK
xx xxx _DIN1
xxxxxxxxx xxxx _DOUT1/DIN2
xxxxxxxxxxxxxxxxxx xxxx _{ControlRegister1}
x_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_xxx_{xx Control Register 2}
1
12
12
123
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16
A_C8 A_C7 A_C6 A_C5 A_C4 A_C3 A_C2 A_C1 B_C8 B_C7 B_C6 B_C5 B_C4 B_C3 B_C2 B_C1
A_C8 A_C7 A_C6 A_C5 A_C4 A_C3 A_C2 A_C1
Old Control Register Contents ± Device #1
Old Control Register Contents ± Device #2
Figure 19. Writing Control Register – Daisy Chain
Control B
Control A
Figure 20. Writing Control Register – Data Flow
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