mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 680

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

CMP Block Diagram
30.6 CMP Block Diagram
The following figure shows the block diagram for the Comparator module.
In the CMP block diagram:
680
INM
INP
• The Window Control block is bypassed when CR1[WE] = 0
• If CR1[WE] = 1, the comparator output will be sampled on every bus clock when
• The Filter Block is bypassed when not in use.
• The Filter Block acts as a simple sampler if the filter is bypassed and
• The Filter Block filters based on multiple samples when the filter is bypassed and
WINDOW=1 to generate COUTA. Sampling does NOT occur when WINDOW = 0.
CR0[FILTER_CNT] is set to 0x01.
CR0[FILTER_CNT] is set greater than 0x01.
FILT_PER
bus clock
EN,PMODE,HYSCTRL[1:0]
Figure 30-2. Comparator Module Block Diagram
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MCF51JF128 Reference Manual, Rev. 2, 03/2011
Clock
Prescaler
CMPO
FILT_PER
WINDOW/SAMPLE
COS
divided
bus
clock
Polarity
Select
INV
Preliminary
INTERNAL BUS
Window
Control
WE
SE
1
0
FILTER_CNT
CGMUX
Filter
Block
SE
COUT
COUTA
OPE
Freescale Semiconductor, Inc.
(TO OTHER SOC FUNCTIONS))
COUT
IER/F
Interrupt
Control
COS
1
0
CFR/F
CMPO to
PAD
IRQ