IC-MR Datasheet, PDF (27/44 Pages) IC-Haus GmbH – 13-BIT S&H SIN/COS INTERPOLATOR WITH CONTROLLER INTERFACES

iC-MR 13-BIT S&H SIN/COS
preliminary
INTERPOLATOR WITH CONTROLLER INTERFACES
Period Counter
-
MTOFF
Rev A1, Page 27/44
Interpolation
STOFF
Multiturn
24 bit
Singleturn
26 bit
Figure 14: Setting the offset
STRESO selects the internal resolution of the single-
turn data for the serial interface in SPI protocol and
the parallel interface. If the internal resolution is re-
duced, the data is output flush left. Should a longer
output data length thus be required, the data is filled
with zeros. This generates a permanently contiguous
position data word from the right-aligned multiturn data
and the left-aligned singleturn data. The interpolator
data resolution of 13 bits is fixed; only its length in the
position data word can be selected using CODERES
(Table 37).
STRESO
Code
0x00
0x01
...
0x0E
...
0x19
0x1A
...
0x1F
Note
Addr. 0x24; bit 4...0
R/W
Singleturn resolution
26 bit
25 bit
...
12 bit
...
1 bit
0 bit
...
0 bit
Not valid for serial interface with BiSS/SSI protocol
If required, MTRESO selects the internal resolution of
the multiturn data for the serial interface in SPI proto-
col and the parallel interface. If the internal resolution
is reduced, the multiturn data is output flush right. The
upper bits are zeroed. The output data length is de-
pendent on the selected output interface.
MTRESO
Code
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
Note
Addr. 0x24; bit 7...5
R/W
Multiturn resolution
24 bit
20 bit
16 bit
12 bit
8 bit
4 bit
0 bit
0 bit
Not valid for serial interface with BiSS/SSI protocol
Table 42: Multiturn resolution
Table 41: Singleturn resolution
24 bit
Multiturn
26 bit
Singleturn
MTRESO
STRESO
Position Data
Figure 15: Reducing the internal data length