Datasheet

 2009 Microchip Technology Inc. DS39897C-page 271
PIC24FJ256GB110 FAMILY
REGISTER 22-3: 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 derived from 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 TAD (not recommended)
bit 7-0 ADCS<7:0>: A/D Conversion Clock Select bits
11111111
······ = Reserved, do not use
01000000
00111111 = 64 T
CY
00111110 = 63 TCY
······
00000001 = 2*T
CY
00000000 = TCY