Microchip Technology MA330018 Data Sheet

Page of 460
© 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
REF
L
.
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.