IC-MU_17 Datasheet, PDF (31/66 Pages) IC-Haus GmbH – MAGNETIC OFF-AXIS POSITION ENCODER - POLE WIDTH 1.28MM

iC-MU MAGNETIC OFF-AXIS
POSITION ENCODER - POLE WIDTH 1.28MM
SSI interface
Rev D1, Page 31/66
ERR
tos
cyle
Figure 16: Example of SSI line signals (MODEA=0x5/0x6) with optional unidirectional register communica-
tion
LSB
ERR WRN MSB
LSB
Zero bits
CRC
tos
cycle
Figure 17: Example of extended SSI line signals (MODEA=0x7, ExtSSI)
MODEA
Code
0x4
0x5
0x6
0x7
Description
Standard SSI, no error-bit
Standard SSI, error-bit low active
Standard SSI, error-bit high active
extended SSI, data-package like BiSS-C
Table 42: MODEA: SSI
adaptive and the timeout period t_out is calculated based
on the first MA edges as shown in Figure 6.
In standard SSI mode singleturn data and, optionally,
multiturn data, an error, and a stop zero can be transmit-
ted. In extended SSI mode (ExtSSI) the multiturn data
(optional), singleturn data, error, warning, and CRC can
be read out. All data is sent with the MSB first and is
equivalent to the data package that is output through
BiSS.
The SSI interface of iC-MU can handle sensor data com-
munication and unidirectional register communication In SSI mode the sensor data can be output in binary or
(Advanced SSI protocol see Figure 16). The timeout is Gray code.