IC-NQC_11 Datasheet, PDF (22/29 Pages) IC-Haus GmbH – 13-bit Sin/D CONVERTER WITH SIGNAL CALIBRATION

iC-NQC
preliminary
13-bit Sin/D CONVERTER WITH SIGNAL CALIBRATION
I/O INTERFACE: SSI Protocol
Rev D1, Page 22/29
iC-NQC can transmit position data in SSI protocol
mode; the parameters described in the following give
the necessary settings and options.
M2S
Code
0x00
0x01
0x02
0x03
Adr 0x00, Bit 6:5
Period counter output length
-
P(7:0)
P(11:0)
P(23:0)
Table 45: Period counter for SSI data output
Figure 17: Example line signal (SSI)
SELSSI
Code
0
1
Adr 0x02, Bit 6
Protocol
BiSS C
SSI
Table 43: Protocol version
TIMO
Code
0
1
TOA
0
1
Notes
Adr 0x06, Bit 5
Timeout t_tos
fclk(MA)min*
Long: ca. 20 µs
50 kHz
not permitted
Adr 0x07, Bit 3
see TOS
not permitted
A
ref.
clock
count
is
equal
to
32
fosc
(see
El.
Char.
A01). The permissible max. clock frequency is
specified by item E06.
*) A low clock frequency can reduce the permissible
maximum input frequency since conversion is
paused for one MA cycle from Latch onwards.
Table 44: Timeout configuration for SSI
CRC6
NZB
Code
00
01
10
11
Adr 0x03, Bit 7
Adr 0x03, Bit 6
Additional bits
E1, E0
none
nE, nW, zero bit
none
Ring operation
no
no
yes
yes
Table 46: Options for SSI data output
GRAY
Code
0
1
Notes
Adr 0x05, Bit 7
SSI data format
binary coded
gray coded
Data output starts with MSB for binary or Gray
coded data.
Table 47: SSI data format