IC-MQF_15 Datasheet, PDF (34/38 Pages) IC-Haus GmbH – Sin/Cos INTERPOLATION IC WITH RS422 DRIVER

iC-MQF PROGRAMMABLE 12-BIT ^preliminary
Sin/Cos INTERPOLATION IC WITH RS422 DRIVER
Rev C1, Page 34/38
Quick programming in the
single master system
For the purpose of signal conditioning it is possible
to reprogram iC-MQF quickly. If test mode is quit and
EMODE(1:0) ̸= 00, iC-MQF reads the configuration data
in again.
Quick programming in the
multimaster system
Fast programming of iC-MQF, byte for byte, is possible
with a multimaster-competent programming device. To
this end the integrated I²C slave mode must be enabled
by ENSL; iC-MQF then reacts to the device ID 0x55.
In operating modes Mode ABZ, System Test and Mode
191/193 the content of the EEPROM is read in its en-
tirety. For other modes the address area is limited to
0x0-0x31 so that the configuration time for either cali-
bration or IC testing is shortened.
If the setup is switched to test mode during the readin
procedure, readin is aborted and only repeated once
test mode has been terminated.
If no EEPROM is connected, iC-MQF automatically
sets the I²C slave mode enable (after a maximum of
150 ms, see Electrical Characteristics, D11) and deacti-
vates the digital section (ENSL = 1 and END = 0 are set).
Any number of bytes can be written at any one time;
the received data is accepted directly into the RAM
register. After programming END = 1 must be set to
restart sine-to-digital conversion in the selected mode
of operation.