iC-MQ PROGRAMMABLE 9-BIT
Sin/Cos INTERPOLATION IC WITH RS422 DRIVER
Rev D4, Page 34/39
Quick programming in the
single master system
Quick programming in the
multimaster system
For the purpose of signal conditioning it is possible Fast programming of iC-MQ, byte for byte, is possible
to reprogram iC-MQ quickly. If test mode is quit and with a multimaster-competent programming device. To
EMODE = 00, iC-MQ reads the configuration data in this end the integrated I2C slave mode must be en-
again. In place of the standard EEPROM (DEVID abled by ENSL; iC-MQ then reacts to the device ID
0x50) an EEPROM with a different device address can 0x55.
be read in which can be stored under DEVID (address
0x00, bit 6:0).
If no EEPROM is connected, iC-MQ automatically
In operating modes Mode ABZ, System Test and Mode sets the I2C slave mode enable (after a maximum of
191/193 the content of the EEPROM is read in its en- 150 ms, see Electrical Characteristics, D11) and deac-
tirety. For other modes the address area is limited to tivates the digital section (ENSL = 1 and END = 0 are
0x0-0x31 so that the configuration time for either cali- set). Any number of bytes can be written at any one
bration or IC testing is shortened.
time; the received data is accepted directly into the
RAM register. The conditions given in the following
If the setup is switched to test mode during the readin table must be taken into consideration here. After pro-
procedure, readin is aborted and only repeated once gramming END = 1 must be set to restart sine-to-digital
test mode has been terminated.
conversion in the selected mode of operation.
ICHAUS [ IC-HAUS GMBH ]
