MA240029 Microchip Technology, MA240029 Datasheet - Page 324
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
MA240029
Manufacturer Part Number
MA240029
Description
Daughter Cards & OEM Boards PIC24FJ128GA310 Gen Purpose PIM
Manufacturer
Microchip Technology
Datasheet
1.MA240029.pdf
(406 pages)
Specifications of MA240029
Rohs
yes
Product
Daughter Cards
Core
PIC
Description/function
Plug-in module
Interface Type
I2C, SPI
Tool Is For Evaluation Of
PIC24FJ128GA310
For Use With
Explorer 16 Development Board
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MA240029
Manufacturer:
MICROCHIP
Quantity:
12 000
- Current page: 324 of 406
- Download datasheet (3Mb)
PIC24FJ128GA310 FAMILY
FIGURE 27-1:
27.2
Time measurements on the pulse width can be similarly
performed using the A/D module’s internal capacitor
(C
Figure 27-2
time measurements, and how the CTMU and A/D
modules are related in this application. This example
also shows both edge events coming from the external
CTEDG pins, but other configurations using internal
edge sources are possible.
27.3
The CTMU module can also generate an output pulse
with edges that are not synchronous with the device’s
system clock. More specifically, it can generate a pulse
with a programmable delay from an edge event input to
the module.
DS39996F-page 324
AD
) and a precision resistor for current calibration.
Measuring Time
Pulse Generation and Delay
displays the external connections used for
TYPICAL CONNECTIONS AND INTERNAL CONFIGURATION FOR
CAPACITANCE MEASUREMENT
C
APP
AN
ANx
R
PR
Y
EDG2
EDG1
When the module is configured for pulse generation
delay by setting the TGEN bit (CTMUCON1<12>), the
internal current source is connected to the B input of
Comparator 2. A capacitor (C
the Comparator 2 pin, C2INB, and the comparator
voltage reference, CV
CV
module begins to charge C
is detected. When C
trip point, a pulse is output on CTPLS. The length of the
pulse delay is determined by the value of C
the CV
Figure 27-3
pulse generation, as well as the relationship of the
different analog modules required. While CTED1 is
shown as the input pulse source, other options are
available. A detailed discussion on pulse generation
with the CTMU module is provided in the “PIC24F
Family Reference Manual”.
PIC24F Device
A/D Converter
REF
Timer1
CTMU
Current Source
REF
is then configured for a specific trip point. The
Output Pulse
trip point.
illustrates the external connections for
2010-2011 Microchip Technology Inc.
DELAY
REF
, is connected to C2INA.
DELAY
charges above the CV
DELAY
when an edge event
) is connected to
DELAY
and
REF
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