mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 690

• Manufacturer Part Number: mcf51jf128
• Description: Mcf51jf128 Reference Manual
• Manufacturer: Freescale Semiconductor, Inc

CMP Functional Description
For cases where a comparator is used to drive a fault input (for example, for a motor-
control module such as FTM), it should generally be configured to operate in continuous
mode, so that an external fault can immediately pass through the comparator to the target
fault circuitry.
30.8.1.1 Disabled Mode (# 1)
In disabled mode, the analog comparator is non-functional and consumes no power. The
output of the analog comparator block (CMPO) is zero in this mode.
690
Mode #
All other combinations of CR1[EN], CR1[WE], CR1[SE], CR0[FILTER_CNT], and FPR[FILT_PER] are illegal.
CR1[EN]
Filtering and sampling settings should be changed only after
setting CR1[SE]=0 and CR0[FILTER_CNT]=0x00. This has
the effect of resetting the filter to a known state.
Table 30-15. Comparator Sample/Filter Controls (continued)
CR1[WE]
MCF51JF128 Reference Manual, Rev. 2, 03/2011
CR1[SE]
CR0[FILTER_C
Preliminary
NT]
Note
FPR[FILT_PER]
Freescale Semiconductor, Inc.
Operation