IC-MA_14 Datasheet, PDF (10/19 Pages) IC-Haus GmbH – 8-BIT ANGULAR HALL SENSOR / ENCODER

iC-MA
8-BIT ANGULAR HALL SENSOR / ENCODER
PROGRAMMING THE CONFIGURATION
Rev C1, Page 10/19
iC-MA has 28 modes of operation (see tables on the
following pages). After the device has been switched
on or woken up from standby mode by a low signal at
pin NEN the levels at the configuration inputs CFG1 to
CFG3 are assessed. These three-level inputs can be
connected to GND = low level, left open = open or con-
nected to VDD = high level. For correct identification,
a setup time of at least tp(CFGx) = 4 µs must be main-
tained between programming the configuration and ac-
tivating the device. While the device is active changes
in signal at the configuration inputs are ignored.
In standby all ports are switched to tristate, i.e. high
impedance. Only in chain operation modes port D level
is active high so that the devices arranged further be-
hind can also be deactivated.
4V
VDD
NEN
iC-MA active
iC-MA active
If several iC-MAs are connected in series in chain op-
eration (see the description of functions on page 14)
it must be ensured that the NEN input of the devices
level is switched to low during the various clock cy-
cles and that the programming default does thus not
lie within the active phase of the devices.
CFGx
td(VDD)on
tp(CFGx)
tp(CFGx)
Figure 5: Programming the configuration