Datasheet

© 2007-2012 Microchip Technology Inc. DS70291G-page 295
dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04
REGISTER 22-7: AD1CSSL: ADC1 INPUT SCAN SELECT REGISTER LOW
(1,2)
U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0
— — — — — — — CSS8
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
CSS7 CSS6 CSS5 CSS4 CSS3 CSS2 CSS1 CSS0
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 15-9 Unimplemented: Read as ‘0’
bit 8-0 CSS<8:0>: ADC Input Scan Selection bits
1 = Select ANx for input scan
0 = Skip ANx for input scan
Note 1: On devices without nine analog inputs, all AD1CSSL bits can be selected by user application. However,
inputs selected for scan without a corresponding input on device converts V
REFL.
2: CSSx = ANx, where x = 0 through 8.
REGISTER 22-8: AD1PCFGL: ADC1 PORT CONFIGURATION REGISTER LOW
(1,2,3)
U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0
— — — — — — —PCFG8
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
PCFG7 PCFG6 PCFG5 PCFG4 PCFG3 PCFG2 PCFG1 PCFG0
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 15-9 Unimplemented: Read as ‘0’
bit 8-0 PCFG<8:0>: ADC Port Configuration Control bits
1 = Port pin in Digital mode, port read input enabled, ADC input multiplexer connected to AV
SS
0 = Port pin in Analog mode, port read input disabled, ADC samples pin voltage
Note 1: On devices without nine analog inputs, all PCFG bits are R/W by user. However, PCFG bits are ignored on
ports without a corresponding input on device.
2: PCFGx = ANx, where x = 0 through 8.
3: PCFGx bits have no effect if ADC module is disabled by setting the ADxMD bit in the PMDx register. In this
case, all port pins are multiplexed with ANx will be in Digital mode.