IC-LNB_16 Datasheet, PDF (19/37 Pages) IC-Haus GmbH – 18-BIT OPTO ENCODER

iC-LNB 18-BIT OPTO ENCODER ^preliminary
WITH SPI AND SER/PAR INTERFACES
Power On
(POK = 1)
Rev B2, Page 19/37
write address 0x11
STOPFLEX = 1
ENIPO = 0
write addresses 0x00 - 0x09
Yes
enable
No
Flexcount?
INCA, INCB, INCZ ^low
tristate or low?
tristate
write addresses 0x0A – 0x10
0x0B: TRIABZ = 1
write address 0x11
NOUTLO = 1, ENIPO = 1,
RESSUB
write address 0x11
STOPFLEX = 0
write addresses 0x0A – 0x10
0x0B: TRIABZ = 0
write address 0x11
NOUTLO = 0, ENIPO = 1,
RESSUB
write address 0x11
STOPFLEX = 0
write address 0x0E
RESIPO
write address 0x11
ENIPO = 1
write address 0x0B
TRIABZ = 0
Yes
timeout count + 1;
timeout count
<= 5
No
POSOK
timeout _{read address 0x12} No
POSOK = 1?
Yes
POSOK
timeout
read address 0x12
No
POSOK = 1?
write address 0x0B
TRIABZ = 0
Yes
write address 0x11
NOUTLO = 1
configuration
error
configuration
finished
Figure 4: Example of a typical configuration sequence