IC-LNB_16 Datasheet, PDF (35/37 Pages) IC-Haus GmbH – 18-BIT OPTO ENCODER

iC-LNB 18-BIT OPTO ENCODER ^preliminary
WITH SPI AND SER/PAR INTERFACES
DESIGN REVIEW: Notes On Chip Functions
Rev B2, Page 35/37
iC-LNB V
No.
1
Function, Parameter/Code
Parameter NENFLEX, SELABS:
Absolute position using FlexCount for
SPI, SER and PAR interfaces.
Description and Application Notes
If iC-LNB is powered on when rotating the encoder disc, the absolute position with
activated FlexCount (NENFLEX = 0, SELABS = 0) becomes correct after crossing
the zero position of the code disc, and the absolute data output provides the
correct position.
To obtain the accurate absolute position in any case, also directly after power on of
iC-LNB while turning the disc, the FlexCount has to be restricted to incremental
output and by-passed by setting SELABS = 1.
The incremental ABZ output is accurate regardless of whether the Flex Count is
used or not.
Table 53: Notes on chip functions regarding iC-LNB chip release V