IC-HF Datasheet, PDF (28/36 Pages) IC-Haus GmbH – 6-CH. ENCODER LINK, RS-422 DRIVER/RECEIVER

iC-HF
preliminary
6-CH. ENCODER LINK, RS-422 DRIVER/RECEIVER
Rev C1, Page 28/36
Since ECM pin is held hi, it is possible to enter Encoder
Link State with the Encoder Link Sequence at pins
Q1/NQ1. iC-HF is in A/B/Z and U/V/W mode, therefore
9 Encoder Link lines are in use.
In Encoder Link State, I²C bus lines SCL and SDA are
transmitted in the example through pins NQ1 and NQ2.
A command can be sent to the microcontroller through
I²C to modify the state of iC-MU and select analog
mode. In this mode, positive and negative sine, and
positive and negative cosine signals are output via pins
PB0 to PB3. These analog signals are directly linked to
iC-HF output pins Q1 to Q4.
VPA
VPD
iC-MU
ANA/DIG OUTPUT
SER INTERFACE
SCL
SDA
I2C INTERFACE
1 μF
PB0 _NSM
PB1 _PSM
PB2 _PCM
PB3 NCM
PA0
PA1
PA2
PA3
VNA
VND
VDDS
GNDS
REVERSE POLARITY PROTECTION
VDD
GND
X1
NX1
X2
NX2
X3
NX3
X4
X5
X6
PTC
ECM
OEN
FMSEL1
FMSEL2
NERRI
BYP
EBIS TRI
CONTROL
LOGIC
OVT
PoDo
1
Encoder Link
Q1
NQ1
Encoder Link
Q2
NQ2
Encoder Link
Q3
NQ3
Encoder Link Q4
NQ4
Encoder Link Q5
NQ5
Encoder Link Q6
NQ6
BYPR
ENCODER LINK
REQUEST
DETECTION
OVT
PoDo
OVERTEMP
POWER DOWN
Q1
NQ1
NERR
iC-HF
4.5..5.5V
1 μF
NSM
SCL
PSM
SDA
PCM
NCM
EEPROM
uC
Figure 31: Example application with iC-MU and microcontroller with iC-HF in Encoder Link State