iC-MP 8-BIT HALL ANGLE ENCODER
WITH RATIOMETRIC OUTPUT
Rev B1, Page 18/22
SLOW SCANNING MODE
VZAP
PSMI
VDD
VDD
VDD
VZAP
VZAP
VZAP
MP0
MP0
MP0
SLOW SCANNING
Hall Angle Encoder
XSS3
Hall Angle Encoder
XSS2
Hall Angle Encoder
XSS1
R1
2.2k
PSMI
PSMI
PSMI
PSMO
SLO
PSMO
SLO
PSMO
SLO
B
B
B
SLI
SLI
SLI
SLI
MA
MA
MA
NERR
LAO
NERR
LAO
NERR
LAO
SLAVE 3
SLAVE 2
SLAVE 1
GND
GND
GND
MA
NERR
LAO
SLO
Figure 18: Slow Scanning Mode
In Slow Scanning Mode only one device is activated in tiation of the individual data words. See ’PROGRAM-
a chain. This device transmits its absolute position on MING MODE’.
the SLO bus and the analog output voltage to the LAO The chain is reset by a logic high at the PSMI pin (see
bus. After an timeout at SLI, the next device is enabled page 19).
(PSMO hi → lo). The devices needs some time after
activation to find the actual position.
Application hints:
Parameter CRCID can be used for improved differen- See ’DESIGN REWIEW’.
ICHAUS [ IC-HAUS GMBH ]
