PIC32MX1XX Datasheet, PDF (118/320 Pages) Microchip Technology – 32-bit Microcontrollers (up to 128 KB Flash and 32 KB SRAM) with Audio and Graphics Interfaces, USB, and Advanced Analog

PIC32MX1XX/2XX
REGISTER 9-16: DCHxCSIZ: DMA CHANNEL x CELL-SIZE REGISTER
Bit
Bit
Bit
Bit
Bit
Bit
Bit
Range 31/23/15/7 30/22/14/6 29/21/13/5 28/20/12/4 27/19/11/3 26/18/10/2
31:24
23:16
15:8
7:0
U-0
—
U-0
—
R/W-0
R/W-0
U-0
—
U-0
—
R/W-0
R/W-0
U-0
—
U-0
—
R/W-0
R/W-0
U-0
U-0
—
—
U-0
U-0
—
—
R/W-0
R/W-0
CHCSIZ<15:8>
R/W-0
R/W-0
CHCSIZ<7:0>
U-0
—
U-0
—
R/W-0
R/W-0
Bit
25/17/9/1
U-0
—
U-0
—
R/W-0
R/W-0
Bit
24/16/8/0
U-0
—
U-0
—
R/W-0
R/W-0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 31-16 Unimplemented: Read as ‘0’
bit 15-0 CHCSIZ<15:0>: Channel Cell-Size bits
1111111111111111 = 65,535 bytes transferred on an event
•
•
•
0000000000000010 = 2 bytes transferred on an event
0000000000000001= 1 byte transferred on an event
0000000000000000 = 65,536 bytes transferred on an event
REGISTER 9-17: DCHxCPTR: DMA CHANNEL x CELL POINTER REGISTER⁽¹⁾
Bit
Bit
Bit
Bit
Bit
Bit
Bit
Bit
Range 31/23/15/7 30/22/14/6 29/21/13/5 28/20/12/4 27/19/11/3 26/18/10/2 25/17/9/1
U-0
31:24
—
U-0
23:16
—
R-0
15:8
R-0
7:0
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
R-0
R-0
R-0
R-0
R-0
R-0
CHCPTR<15:8>
R-0
R-0
R-0
R-0
R-0
R-0
CHCPTR<7:0>
Bit
24/16/8/0
U-0
—
U-0
—
R-0
R-0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 31-16 Unimplemented: Read as ‘0’
bit 15-0 CHCPTR<7:0>: Channel Cell Progress Pointer bits
1111111111111111 = 65,535 bytes have been transferred since the last event
•
•
•
0000000000000001 = 1 byte has been transferred since the last event
0000000000000000 = 0 bytes have been transferred since the last event
Note 1: When in Pattern Detect mode, this register is reset on a pattern detect.
DS61168D-page 118
Preliminary
© 2011-2012 Microchip Technology Inc.