iC-MP 8-BIT HALL ANGLE ENCODER
WITH RATIOMETRIC OUTPUT
Rev B1, Page 11/22
OPERATING MODES
V( VD D ) > VD D on
Sta rtup
Po we r- On R eset
V (V ZA P) < V 1t() lo
V( VZ AP ) > V 1t( )hi
E nte r
En ter
N orma l Mode
Pr ogr ammi ng Mode
SL I= 0; P SMI= 0
S
L
I
=
1
;
P
S
M
I
=
0
V
(
V
Z
A
P
)
=
V
D
D
VV (( VV ZZ AA PP )) == VV zz aa pp (( ))
WWrr ii tt ee RR OO MM
V( VZ AP ) = V D D
R ead R O M
F as t Mo de
(O pe ra te )
S lo w Mo de
(Op erat e)
W
r
i
t
e
R
A
M
t
o
u
t
(
M
A
)
Sl ow Mode
Sl eep
P
S
M
I
=
1
P
S
M
I
=
1
S
l
e
e
p
Figure 10: Operation Modes
Figure 10 shows the different modes of iC-MP. There
are two major modes of operation:
the chapter on ’PROGRAMMING MODE’ for further
details. There are three minor modes:
– Read ROM:
• Normal Mode:
iC-MP’s Zener zap ROM structure is read.
Readout position data and error bit. Normal mode is
subdivided into two minor modes of operation:
– Fast Scanning Mode:
– Write RAM:
iC-MP’s internal registers can be temporarily
programmed for test purposes.
iC-MP is always activated.
– Slow Scanning Mode (Power Save Mode):
iC-MP goes into Slow Mode Sleep following the
first transmission of sensor data via the serial
interface.
– Write ROM:
iC-MP’s zapping structure is programmed.
A Power-On Reset is required after a Read ROM and
Write ROM instruction. Each state is quit by a Power-
• Programming Mode:
iC-MP can be configured in programming mode. See On Reset.
ICHAUS [ IC-HAUS GMBH ]
