Datasheet

 2011-2013 Microchip Technology Inc. DS30001037C-page 161
PIC24F16KL402 FAMILY
REGISTER 19-3: AD1CON3: A/D CONTROL REGISTER 3
R/W-0
R-0 R/W-0
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ADRC EXTSAM PUMPEN SAMC4 SAMC3 SAMC2 SAMC1 SAMC0
bit 15 bit 8
U
-0 U -0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — ADCS5 ADCS4 ADCS3 ADCS2 ADCS1 ADCS0
bit 7 bit 0
Legend:
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 EXTSAM: Extended Sampling Time bit
1 = A/D is still sampling after SAMP = 0
0 = A/D is finished sampling
bit 13 PUMPEN: Charge Pump Enable bit
1 = Charge pump for switches is enabled
0 = Charge pump for switches is disabled
bit 12-8 SAMC<4:0>: Auto-Sample Time bits
11111 = 31 T
AD
•
•
•
00001 = 1 T
AD
00000 = 0 TAD (not recommended)
bit 7-6 Unimplemented: Maintain as ‘0’
bit 5-0 ADCS<5:0>: A/D Conversion Clock Select bits
11111 = 64 • TCY
11110 = 63 • TCY
•
•
•
00001 = 2 • TCY
00000 = TCY