Microchip Technology MA240029 データシート
PIC24FJ128GA310 FAMILY
DS39996F-page 306
2010-2011 Microchip Technology Inc.
REGISTER 24-6:
AD1CHS: A/D SAMPLE SELECT REGISTER
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
CH0NB2
CH0NB1
CH0NB0
CH0SB4
CH0SB3
CH0SB2
CH0SB1
CH0SB0
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
CH0NA2
CH0NA1
CH0NA0
CH0SA4
CH0SA3
CH0SA2
CH0SA1
CH0SA0
bit 7
bit 0
Legend:
R = Readable 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 15-13
CH0NB<2:0>:
Sample B Channel 0 Negative Input Select bits
1xx
= Unimplemented
011
= Unimplemented
010
= AN1
001
= Unimplemented
000
= V
REF
-/AV
SS
bit 12-8
CH0SB<4:0>:
Sample B Channel 0 Positive Input Select bits
11111
= V
BAT
/2
11110
= AV
DD(
)
11101
= AV
SS(
)
11100
= Band gap reference (V
BG
)
11011
= V
BG
/2
(
11010
= V
BG
/6
(
11001
= CTMU
11000
= CTMU temperature sensor input (does not require AD1CTMENH<8> to be set)
10111
= AN23
10110
= AN22
10101
= AN21
10100
= AN20
10011
= AN19
10010
= AN18
10001
= AN17
10000
= AN16
01111
= AN15
01110
= AN14
01101
= AN13
01100
= AN12
01011
= AN11
01010
= AN10
01001
= AN9
01000
= AN8
00111
= AN7
00110
= AN6
00101
= AN5
00100
= AN4
00011
= AN3
00010
= AN2
00001
= AN1
00000
= AN0
Note 1:
These input channels do not have corresponding memory mapped result buffers.
2:
These channels are implemented in 100-pin devices only.