DRV8860_16 Datasheet, PDF (20/41 Pages) Texas Instruments – 8-Channel Serial Interface Low-Side Driver

DRV8860, DRV8860A
SLRS065E – SEPTEMBER 2013 – REVISED NOVEMBER 2015
www.ti.com
8.5.1.3.2 Special command: Read Control Register
When Read-Control-Register command is issued, control register content will be copied to internal shift register
and following CLK will shift this content out from DOUT pin. This provides a mechanism for system to verify the
control register is correctly programmed.
LATCH
xxxx x
CLK
xxxx x
xxxxxxxxx xxxxx ^DOUT
1
1234
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 Register
Control Register Contents A
Figure 21. Read Control Register – Single Device
LATCH
xx _CLK
xx _{DOUT 1 / DIN 2}
x_xx_xx_xx_xx_xx_xx_xx_xx_xx_x xxxxxxxxxx_xx_xx_{x DOUT2}
1
1234
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_D8 B_D7 B_D6 B_D5 B_D4 B_D3 B_D2 B_D1 A_D8 A_D7 A_D6 A_D5 A_D4 A_D3 A_D2 A_D1
Control Register #1
Control Register Contents A
Control Register #2
Control Register Contents B
Figure 22. Read Control Register – Daisy Chain
Figure 23. Read Control Register – Data Flow
20
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