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Microchip Technology AC164139 Data Sheet

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 2010 Microchip Technology Inc.
DS39969B-page 329
PIC24FJ256DA210 FAMILY
REGISTER 23-3:
AD1CON3: A/D CONTROL REGISTER 3  
R/W-0
r-0
r-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
ADRC
r
r
SAMC4
SAMC3
SAMC2
SAMC1
SAMC0
bit 15
bit 8
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
ADCS7
ADCS6
ADCS5
ADCS4
ADCS3
ADCS2
ADCS1
ADCS0
bit 7
bit 0
Legend:
r = Reserved bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 15
ADRC: A/D Conversion Clock Source bit
1
 = A/D internal RC clock
0
 = Clock is derived from the system clock
bit 14-13
Reserved: Maintain as ‘0’
bit 12-8
SAMC<4:0>: Auto-Sample Time bits
11111
 = 31 T
AD
.
.
.
00001
 = 1 T
AD
00000
 = 0 T
AD
 (not recommended)
bit 7-0
ADCS<7:0>: A/D Conversion Clock Select bits
11111111
= 256  *  T
CY
······
00000001
= 2  *  T
CY
00000000
= T
CY