43.7.17 ADC FIFO Output Data Register

Note: Reading any part of the PFFDATA register advances the FIFO pointer, therefore it is recommended to read all 32 bits of the register and then parse out the values of each field.

Table 43-22. Register Bit Attribute Legend
Symbol	Description	Symbol	Description	Symbol	Description
R	Readable bit	HC	Cleared by Hardware	(Grey cell)	Unimplemented
W	Writable bit	HS	Set by Hardware	X	Bit is unknown at Reset
K	Write to clear	S	Software settable bit	—	—

Name:	PFFDATA
Offset:	0xD8
Reset:	0x00000000


Bit	31	30	29	28	27	26	25	24
	PFFCNT[7:0]
Access	R	R	R	R	R	R	R	R
Reset	0	0	0	0	0	0	0	0


Bit	23	22	21	20	19	18	17	16
	PFFFRACT	PFFSIGN			PFFCHNID[3:0]
Access	R	R			R	R	R	R
Reset	0	0			0	0	0	0


Bit	15	14	13	12	11	10	9	8
	PFFDATA[15:8]
Access	R	R	R	R	R	R	R	R
Reset	0	0	0	0	0	0	0	0


Bit	7	6	5	4	3	2	1	0
	PFFDATA[7:0]
Access	R	R	R	R	R	R	R	R
Reset	0	0	0	0	0	0	0	0

Bits 31:24 – PFFCNT[7:0] Current number of data entries to be read in the APB FIFO

Bit 23 – PFFFRACT CHNCFG2.FRACTk setting associated with data in the PFFDATA register

Bit 22 – PFFSIGN CHNCFG3.SIGNk setting associated with data in the PFFDATA register

Bits 19:16 – PFFCHNID[3:0] Analog Input Channel Index k associated with PFFCORID and data in the PFFDATA register, k = 14-0 which represents AIN[14:0]

Bits 15:0 – PFFDATA[15:0] 16-bit Output Data of the FIFO

Data is in the format given by PFFFRACT and PFFSIGN.