DRV8809 Datasheet, PDF (13/44 Pages) Texas Instruments – COMBINATION MOTOR DRIVERS WITH DC-DC CONVERTERS

DRV8809
DRV8810
www.ti.com ............................................................................................................................................................... SLVS854A – JULY 2008 – REVISED JULY 2008
Serial Interface A-B: Set A-B motor operating parameters and access to setup/extended setup register
16-bit shift register
Latch
select
16-bit latch (A-B drivers)
16-bit latch (setup)
16-bit latch (extended setup)
Protection detect
signal selector
or
Device ID/Vendor ID
(ROM)
A. A-B register at EXT-setup mode has device/vendor ID ROM. The ID must be read out at LOGIC OUT pin.
Figure 4. Serial Interface A-B
Serial interface C-D: Set C-D motor operating parameters
Data
Clock
16-bit shift register
Strobe
16-bit latch (C-D drivers)
Figure 5. Serial Interface C-D
Copyright © 2008, Texas Instruments Incorporated
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