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IC-MD Datasheet(PDF) 7 Page - IC-Haus GmbH |
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IC-MD Datasheet(HTML) 7 Page - IC-Haus GmbH |
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7 / 23 page  preliminary preliminary iC-MD RS-422 QUADRATURE ENCODER RECEIVER/COUNTER WITH SPI AND BiSS Rev A1, Page 7/23 CONFIGURATION PARAMETERS Read/Write Registers Configuration INVZ(1:0) invert Z signal EXCH(2:0) exchange inputs AB CNTCFG(2:0) counter configuration TTL TTL/differential inputs CBZ(1:0) clear counter by zero CFGZ(1:0) zero signal configuration TPCFG(1:0) TPI configuration PRIOR SPI/BiSS communication priority MASK(9:0) error/warning mask NMASK(1:0) error/warning not mask LVDS LVDS/RS-422 differential inputs CH2SEL BiSS channel 2 select ENCH2 BiSS channel 2 enable CH1SEL BiSS channel 1 select ENCH1 BiSS channel 1 enable CH0SEL BiSS channel 0 select NENCH0 BiSS channel 0 not enable Table 5: Register description Write-Only Registers Instructions ACT1 set value of ACT1 pin ACT0 set value of ACT0 pin TP latch TP1 and TP2 ZCEN enable zero codification ABRES2 reset AB counter 2 ABRES1 reset AB counter 1 ABRES0 reset AB counter 0 Table 6: Instruction Byte Read-Only Registers Status AB counter values NERR error bit (low active) NWARN warning bit (low active) TP1 touch-probe 1 register NTPVAL touch-probe valid (low active) NABERR AB counter error (low active) TP2 touch-probe 2 register REF reference register UPD update register NUPDVAL update register valid (low active) Table 7: Counter Registers Error ABERRx AB signals error in counter x EXTERR external error Table 8: Error Registers Warning OVFx overflow in counter x ZEROx signals zero value in counter x PDWN power-down reset RVAL REF value valid UPDVAL update register up to date OVFREF overflow in REF counter TPVAL new touch-probe value available EXTWARN external warning COMCOL communication collision TPS actual TPI pin status ENSSI SSI enabled Table 9: Warning Registers |
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