PIC18F25J50 MICROCHIP [Microchip Technology], PIC18F25J50 Datasheet - Page 348

• Manufacturer Part Number: PIC18F25J50
• Description: 28/44-Pin, Low-Power, High-Performance USB Microcontrollers with nanoWatt XLP Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F46J50 FAMILY
REGISTER 21-1:
REGISTER 21-2:
DS39931D-page 348
bit 0
Note 1:
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5-3
bit 2-0
Note 1:
R/W-0
ADFM
2:
3:
4:
These channels are not implemented on 28-pin devices.
Performing a conversion on unimplemented channels will return random values.
For best accuracy, the band gap reference circuit should be enabled (ANCON1<7> = 1) at least 10 ms
before performing a conversion on this channel.
On package types that have AV
V
AV
If the A/D FRC clock source is selected, a delay of one T
clock starts. This allows the SLEEP instruction to be executed before starting a conversion.
SS
SS
ADON: A/D On bit
1 = A/D Converter module is enabled
0 = A/D Converter module is disabled
ADFM: A/D Result Format Select bit
1 = Right justified
0 = Left justified
ADCAL: A/D Calibration bit
1 = Calibration is performed on next A/D conversion
0 = Normal A/D Converter operation
ACQT<2:0>: A/D Acquisition Time Select bits
111 = 20 T
110 = 16 T
101 = 12 T
100 = 8 T
011 = 6 T
010 = 4 T
001 = 2 T
000 = 0 T
ADCS<2:0>: A/D Conversion Clock Select bits
110 = F
101 = F
100 = F
011 = F
010 = F
001 = F
000 = F
levels at the circuit board level. Package types that do not have AV
to V
ADCAL
R/W-0
DD
ADCON0: A/D CONTROL REGISTER 0 (ACCESS FC2h)
ADCON1: A/D CONTROL REGISTER 1 (ACCESS FC1h)
OSC
OSC
OSC
RC
OSC
OSC
OSC
and V
AD
AD
AD
AD
AD
AD
AD
AD
(clock derived from A/D RC oscillator)
/64
/16
/4
/32
/8
/2
W = Writable bit
‘1’ = Bit is set
SS
ACQT2
internally.
R/W-0
DD
and AV
ACQT1
R/W-0
SS
pins, these pins should be externally connected to V
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
ACQT0
R/W-0
(1)
CY
(instruction cycle) is added before the A/D
ADCS2
R/W-0
DD
and AV
 2011 Microchip Technology Inc.
x = Bit is unknown
ADCS1
R/W-0
SS
pins, tie AV
ADCS0
R/W-0
DD
DD
and
and
bit 0