DRV8860_16 Datasheet, PDF (21/41 Pages) Texas Instruments – 8-Channel Serial Interface Low-Side Driver

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DRV8860, DRV8860A
SLRS065E – SEPTEMBER 2013 – REVISED NOVEMBER 2015
8.5.1.3.3 Special command: Read Data Register
When Read-Data-Register command is issued, internal output data 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 output data is correctly programmed. It makes system more robust in noisy system.
LATCH
x_xx_{xxxxxxxxxx xx}x_xx_xx_xx ^CLK
DOUT
1
1234
1234
123
1
2
3
4
5
6
7
8
A_D8 A_D7 A_D6 A_D5 A_D4 A_D3 A_D2 A_D1
Data Register
Data Register Contents A
Figure 24. Reading Data Register – Single Device
LATCH
x
CLK
1
1234
1234
123
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16
x
DOUT 1 / DIN 2
x_xx_xx_xx_xx_xx_xx_xx_xx_xx_x xxxxxxxxxx_xx_xx_{x DOUT2}
A_D8 A_D7 A_D6 A_D5 A_D4 A_D3 A_D2 A_D1
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
Data Register 1
Data Register Contents A
Data Register 2
Data Register Contents B
Figure 25. Reading Data Register – Daisy Chain
Figure 26. Reading Data Register – Data Flow
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