DRV8823_15 Datasheet, PDF (11/21 Pages) Texas Instruments – 4-BRIDGE SERIAL INTERFACE MOTOR DRIVER

DRV8823
www.ti.com
SLVS913D – JANUARY 2009 – REVISED JANUARY 2010
Data Format
Table 1. Motor 1 Command (Bridges A & B)
Bit
D15 -
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
Name
ADDR
(= 0000)
BDECAY
B12
B11
B10 BPHASE BENBL ADECAY A12
A11
Reset
Value
x
0
0
0
0
0
0
0
0
0
D2
D1
D0
A10 APHASE AENBL
0
0
0
Table 2. Motor 2 Command (Bridges C & D)
Bit
D15 -
D12
D11
D10 D9
D8
D7
D6
D5
D4
Name
ADDR
(= 0001)
DDECAY
D12
D11
D10 DPHASE DENBL CDECAY
C12
Reset
Value
x
0
0
0
0
0
0
0
0
D3 D2
D1
D0
C11 C10 CPHASE CENBL
0
0
0
0
Serial Data Timing
SC S
SC LK
SDATA
Note 1
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9 D 10 D11 D12 D13 D14 D 15
Note 2
SSTB
Figure 4. Serial Data Timing Diagram
Note 1: Any amount of time is allowed between clocks, or groups of clocks, as long as SCS stays active. This
allows 8- or 16-bit transfers.
Note 2: If more than 16 clock edges are presented while transferring data (while SCS is still high), data will
continue to be shifted into the data register.
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