參數(shù)資料
型號: 16LF628A
廠商: Microchip Technology Inc.
元件分類: 8位微控制器
英文描述: FLASH-Based 8-Bit CMOS Microcontrollers
中文描述: 基于閃存的8位CMOS微控制器
文件頁數(shù): 66/168頁
文件大?。?/td> 3760K
代理商: 16LF628A
PIC16F627A/628A/648A
DS40044A-page 64
Preliminary
2002 Microchip Technology Inc.
10.5
Comparator Outputs
The comparator outputs are read through the CMCON
register. These bits are read only. The comparator
outputs may also be directly output to the RA3 and RA4
I/O pins. When the CM<2:0> = 110 or 001, multiplexors
in the output path of the RA3 and RA4/T0CK1 pins will
switch and the output of each pin will be the unsynchro-
nized output of the comparator. The uncertainty of each
of the comparators is related to the input offset voltage
and the response time given in the specifications.
Figure 10-3 shows the comparator output block
diagram.
The TRISA bits will still function as an output enable/
disable for the RA3 and RA4/T0CK1 pins while in this
mode.
FIGURE 10-3:
MODIFIED COMPARATOR OUTPUT BLOCK DIAGRAM
Note 1:
When reading the PORT register, all pins
configured as analog inputs will read as a
‘0’. Pins configured as digital inputs will
convert an analog input, according to the
Schmitt Trigger input specification.
2:
Analog levels on any pin that is defined as
a digital input may cause the input buffer
to consume more current than is speci-
fied.
D
Q
EN
To RA3 or RA4/T0CK1 pin
Set CMIF bit
D
Q
EN
CL
RESET
From other Comparator
To Data Bus
CMCON<7:6>
CnV
OUT
CnI
NV
Q1
RD CMCON
Q3
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