CMPx_DACCR field descriptions (continued)Field Description0 V is selected as resistor ladder network supply reference V. in1in1 V is selected as resistor ladder network supply reference V. in2in5–0VOSELDAC Output Voltage SelectSelects an output voltage from one of 64 distinct levels.DACO = (V in /64) * (VOSEL[5:0] + 1) , so the DACO range is from V in /64 to V in .29.7.6 MUX Control Register (CMPx_MUXCR)Address: 4007_3000h base + 5h offset = 4007_3005hBit 7 6 5 4 3 2 1 0Read PSTM 0 PSEL MSELWriteReset 0 0 0 0 0 0 0 0CMPx_MUXCR field descriptionsField Description7PSTMPass Through Mode EnableThis bit is used to enable to MUX pass through mode. Pass through mode is always available but forsome devices this feature must be always disabled due to the lack of package pins.0 Pass Through Mode is disabled.1 Pass Through Mode is enabled.6ReservedThis field is reserved.This read-only field is reserved and always has the value 0.5–3PSELPlus Input Mux ControlDetermines which input is selected for the plus input of the comparator. For INx inputs, see CMP, DAC,and ANMUX block diagrams.NOTE: When an inappropriate operation selects the same input for both muxes, the comparatorautomatically shuts down to prevent itself from becoming a noise generator.000 IN0001 IN1010 IN2011 IN3100 IN4101 IN5110 IN6111 IN72–0MSELMinus Input Mux ControlDetermines which input is selected for the minus input of the comparator. For INx inputs, see CMP, DAC,and ANMUX block diagrams.Table continues on the next page...Chapter 29 Comparator (CMP)KL25 Sub-Family Reference Manual, Rev. 3, September 2012Freescale Semiconductor, Inc. 519
