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Microchip Technology DV320032 Data Sheet

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 2012-2013 Microchip Technology Inc.
DS60001185C-page  133
PIC32MX330/350/370/430/450/470
REGISTER 10-2:
DMASTAT: DMA 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
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
R-0
R-0
R-0
R-0
—
—
—
—
RDWR
DMACH<2:0>
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 31-4 Unimplemented: Read as ‘0’
bit 3
RDWR: Read/Write Status bit
1 = Last DMA bus access was a read
0 = Last DMA bus access was a write
bit 2-0
DMACH<2:0>: DMA Channel bits
These bits contain the value of the most recent active DMA channel.
REGISTER 10-3:
DMAADDR: DMA 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
DMAADDR<31:24>
23:16
R-0
R-0
R-0
R-0
R-0
R-0
R-0
R-0
DMAADDR<23:16>
15:8
R-0
R-0
R-0
R-0
R-0
R-0
R-0
R-0
DMAADDR<15:8>
7:0
R-0
R-0
R-0
R-0
R-0
R-0
R-0
R-0
DMAADDR<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 DMAADDR<31:0>: DMA Module Address bits
These bits contain the address of the most recent DMA access.