HCTL-1101 Datasheet, PDF (14/40 Pages) AVAGO TECHNOLOGIES LIMITED – General Purpose Control ICs Position and Velocity Control Low Power CMOS

Operations of the HCTL-1101
Registers
The HCTL-1101 operation is controlled by a bank of 64 8-
bit registers, 35 of which are user accessible. These reg-
isters contain command and configuration information
necessary to properly run the controller chip. The 35 user-
accessible registers are listed in Tables 1 and 2. The regis-
ter number is also the address. A functional block diagram
of the HCTL-1101 which shows the role of the user-acces-
sible registers is also included in Figure 3. The other 29
registers are used by the internal CPU as scratch registers
and should not be accessed by the user.
Figure 3. Register Block.
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