Datasheet

2015 Microchip Technology Inc. Preliminary DS60001320B-page 345
PIC32MZ Embedded Connectivity with Floating Point Unit (EF) Family
REGISTER 20-14: SQI1BDCON: SQI BUFFER DESCRIPTOR CONTROL 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
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
23:16
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
15:8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
7:0
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
START POLLEN DMAEN
Legend:
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 31-3 Unimplemented: Read as ‘0
bit 2 START: Buffer Descriptor Processor Start bit
1 = Start the buffer descriptor processor
0 = Disable the buffer descriptor processor
bit 1 POLLEN: Buffer Descriptor Poll Enable bit
1 = BDP poll is enabled
0 = BDP poll is not enabled
bit 0 DMAEN: DMA Enable bit
1 = DMA is enabled
0 = DMA is disabled
REGISTER 20-15: SQI1BDCURADD: SQI BUFFER DESCRIPTOR CURRENT ADDRESS 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-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
BDCURRADDR<31:24>
23:16
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
BDCURRADDR<23:16>
15:8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
BDCURRADDR<15:8>
7:0
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
BDCURRADDR<7:0>
Legend:
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 31-0 BDCURRADDR<31:0>: Current Buffer Descriptor Address bits
These bits contain the address of the current descriptor being processed by the Buffer Descriptor
Processor.