Microchip Technology MA240029 データシート
2010-2011 Microchip Technology Inc.
DS39996F-page 305
PIC24FJ128GA310 FAMILY
REGISTER 24-5:
AD1CON5: A/D CONTROL REGISTER 5
R/W-0
R/W-0
R/W-0
R/W-0
U-0
U-0
R/W-0
R/W-0
ASEN
LPEN
CTMREQ
BGREQ
—
—
ASINT1
ASINT0
bit 15
bit 8
U-0
U-0
U-0
U-0
R/W-0
R/W-0
R/W-0
R/W-0
—
—
—
—
WM1
WM0
CM1
CM0
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
ASEN:
Auto-Scan Enable bit
1
= Auto-scan is enabled
0
= Auto-scan is disabled
bit 14
LPEN:
Low-Power Enable bit
1
= Low power is enabled after scan
0
= Full power is enabled after scan
bit 13
CTMREQ:
CTMU Request bit
1
= CTMU is enabled when the A/D is enabled and active
0
= CTMU is not enabled by the A/D
bit 12
BGREQ:
Band Gap Request bit
1
= Band gap is enabled when the A/D is enabled and active
0
= Band gap is not enabled by the A/D
bit 11-10
Unimplemented:
Read as ‘0’
bit 9-8
ASINT<1:0>:
Auto-Scan (Threshold Detect) Interrupt Mode bits
11
= Interrupt after Threshold Detect sequence completed and valid compare has occurred
10
= Interrupt after valid compare has occurred
01
= Interrupt after Threshold Detect sequence completed
00
= No interrupt
bit 7-4
Unimplemented:
Read as ‘0’
bit 3-2
WM<1:0>:
Write Mode bits
11
= Reserved
10
= Auto-compare only (conversion results are not saved, but interrupts are generated when a valid
match occurs, as defined by the CM and ASINT bits)
01
= Convert and save (conversion results are saved to locations as determined by the register bits
when a match occurs, as defined by the CM bits)
00
= Legacy operation (conversion data is saved to a location determined by the buffer register bits)
bit 1-0
CM<1:0>:
Compare Mode bits
11
= Outside Window mode (valid match occurs if the conversion result is outside of the window defined by
the corresponding buffer pair)
10
= Inside Window mode (valid match occurs if the conversion result is inside the window defined by the
corresponding buffer pair)
01
= Greater Than mode (valid match occurs if the result is greater than the value in the corresponding
buffer register)
00
= Less Than mode (valid match occurs if the result is less than the value in the corresponding buffer
register)