70291E Datasheet, PDF (286/436 Pages) Microchip Technology – High-Performance, 16-bit Digital Signal Controllers

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
—
—
—
—
—
—
—
bit 15
R/W-0
CSS8
bit 8
R/W-0
CSS7
bit 7
R/W-0
CSS6
R/W-0
CSS5
R/W-0
CSS4
R/W-0
CSS3
R/W-0
CSS2
R/W-0
CSS1
R/W-0
CSS0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-9
bit 8-0
Unimplemented: Read as ‘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 VREFL.
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
—
—
—
—
—
—
—
bit 15
R/W-0
PCFG8
bit 8
R/W-0
PCFG7
bit 7
R/W-0
PCFG6
R/W-0
PCFG5
R/W-0
PCFG4
R/W-0
PCFG3
R/W-0
PCFG2
R/W-0
PCFG1
R/W-0
PCFG0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-9
bit 8-0
Unimplemented: Read as ‘0’
PCFG<8:0>: ADC Port Configuration Control bits
1 = Port pin in Digital mode, port read input enabled, ADC input multiplexer connected to AVSS
0 = Port pin in Analog mode, port read input disabled, ADC samples pin voltage
Note 1:
2:
3:
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.
PCFGx = ANx, where x = 0 through 8.
PCFGx bits have no effect if ADC module is disabled by setting ADxMD bit in the PMDx register. In this
case, all port pins are multiplexed with ANx will be in Digital mode.
DS70291E-page 286
© 2011 Microchip Technology Inc.