PCM18XT0 Microchip Technology, PCM18XT0 Datasheet - Page 256
![MODULE PROC PIC18F4685](/photos/8/96/89696/pcm18xt0_sml.jpg)
PCM18XT0
Manufacturer Part Number
PCM18XT0
Description
MODULE PROC PIC18F4685
Manufacturer
Microchip Technology
Datasheet
1.PCM18XT0.pdf
(484 pages)
Specifications of PCM18XT0
Accessory Type
Processor Module
Product
Microcontroller Modules
Core Processor
PIC18F4685
Lead Free Status / RoHS Status
Not applicable / Not applicable
For Use With/related Products
ICE2000
For Use With
ICE2000 - EMULATOR MPLAB-ICE 2000 POD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Not applicable / Not applicable
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PIC18F2682/2685/4682/4685
19.4
The selection of the automatic acquisition time and A/D
conversion clock is determined in part, by the clock
source and frequency while in a power-managed mode.
If the A/D is expected to operate while the device is in
a power-managed mode, the ACQT2:ACQT0 and
ADCS2:ADCS0 bits in ADCON2 should be updated in
accordance with the clock source to be used in that
mode. After entering the mode, an A/D acquisition or
conversion may be started. Once started, the device
should continue to be clocked by the same clock
source until the conversion has been completed.
If desired, the device may be placed into the
corresponding Idle mode during the conversion. If the
device clock frequency is less than 1 MHz, the A/D RC
clock source should be selected.
Operation in the Sleep mode requires the A/D F
clock to be selected. If the ACQT2:ACQT0 bits are set
to ‘000’ and a conversion is started, the conversion will
be delayed one instruction cycle to allow execution of
the SLEEP instruction and entry to Sleep mode. The
IDLEN bit (OSCCON<7>) must have already been
cleared prior to starting the conversion.
DS39761C-page 256
Operation in Power-Managed
Modes
RC
19.5
The ADCON1, TRISA, TRISB and TRISE registers all
configure the A/D port pins. The port pins needed as
analog inputs must have their corresponding TRIS bits
set (input). If the TRIS bit is cleared (output), the digital
output level (V
The A/D operation is independent of the state of the
CHS3:CHS0 bits and the TRIS bits.
Note 1: When reading the PORT register, all pins
2: Analog levels on any pin defined as a
3: The
Configuring Analog Port Pins
configured as analog input channels will
read as cleared (a low level). Pins config-
ured as digital inputs will convert an
analog input. Analog levels on a digitally
configured
converted.
digital input may cause the digital input
buffer to consume current out of the
device’s specification limits.
Register 3H configures PORTB pins to
reset as analog or digital pins by control-
ling how the PCFG0 bits in ADCON1 are
reset.
OH
or V
PBADEN
OL
© 2009 Microchip Technology Inc.
) will be converted.
input
bit
will
in
be
Configuration
accurately
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