Datasheet

 2015 Microchip Technology Inc. Preliminary DS60001320B-page 473
PIC32MZ Embedded Connectivity with Floating Point Unit (EF) Family
REGISTER 28-22: ADCFSTAT: ADC FIFO STATUS REGISTER
Bit Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31:24
R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FEN — — ADC4EN ADC3EN ADC2EN ADC1EN ADC0EN
23:16
R/W-0 R-0, HS, HC R-0, HS, HC U-0 U-0 U-0 U-0 U-0
FIEN FRDY FWROVERR — — — — —
15:8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
FCNT<7:0>
7:0
R-0 U-0 U-0 U-0 U-0 R-0 R-0 R-0
FSIGN — — — —ADCID<2:0>
Legend: HS = Hardware Set HC = Hardware Cleared
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 31 FEN: FIFO Enable bit
1 = FIFO is enabled
0 = FIFO is disabled; no data is being saved into the FIFO
bit 30-29 Unimplemented: Read as ‘0’
bit 28-24 ADC4EN:ADC0EN: ADCx Enable bits (‘x’ = 0 through 4)
1 = Converted output data of ADCx is stored in the FIFO
0 = Converted output data of ADCx is not stored in the FIFO
Note: While using FIFO, the output data is additionally stored in the respective output data register
(ADCDATAx).
bit 23 FIEN: FIFO Interrupt Enable bit
1 = FIFO interrupts are enabled; an interrupt is generated once the FRDY bit is set
0 = FIFO interrupts are disabled
bit 22 FRDY: FIFO Data Ready Interrupt Status bit
1 = FIFO has data to be read
0 = No data is available in the FIFO
Note: This bit is cleared when the FIFO output data in ADCFIFO has been read and there is no
additional data ready in the FIFO (that is, the FIFO is empty).
bit 21 FWROVERR: FIFO Write Overflow Error Status bit
1 = A write overflow error in the FIFO has occurred (circular FIFO)
0 = A write overflow error in the FIFO has not occurred
Note: This bit is cleared after ADCFSTAT<23:16> are read by software.
bit 15-8 FCNT<7:0>: FIFO Data Entry Count Status bit
The value in these bits indicates the number of data entries in the FIFO.
bit 7 FSIGN: FIFO Sign Setting bit
This bit reflects the sign of data stored in the ADCFIFO register.
bit 6-3 Unimplemented: Read as ‘0’
bit 2-0 ADCID<2:0>: ADCx Identifier bits (‘x’ = 0 through 6)
These bits specify the ADC module whose data is stored in the FIFO.
111 = Reserved
110 = Converted data of ADC6 is stored in FIFO
•
•
•
000 = Converted data of ADC0 is stored in FIFO