Техническая Спецификация для Microchip Technology MA330025-1
2009-2012 Microchip Technology Inc.
DS70616G-page 167
dsPIC33EPXXX(GP/MC/MU)806/810/814 and PIC24EPXXX(GP/GU)810/814
REGISTER 8-7:
DMA
X
PAD: DMA CHANNEL
X
PERIPHERAL ADDRESS REGISTER
)
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
PAD<15:8>
bit 15
bit 8
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
PAD<7:0>
bit 7
bit 0
Legend:
R = Readable bit
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 15-0
PAD<15:0>: Peripheral Address Register bits
Note 1: If the channel is enabled (i.e., active), writes to this register may result in unpredictable behavior of the
DMA channel and should be avoided.
REGISTER 8-8:
DMA
X
CNT: DMA CHANNEL
X
TRANSFER COUNT REGISTER
)
U-0
U-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
—
—
CNT<13:8>
(
)
bit 15
bit 8
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
CNT<7:0>
bit 7
bit 0
Legend:
R = Readable bit
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 15-14
Unimplemented: Read as ‘0’
bit 13-0
CNT<13:0>: DMA Transfer Count Register bits
(
)
Note 1: If the channel is enabled (i.e., active), writes to this register may result in unpredictable behavior of the
DMA channel and should be avoided.
2: The number of DMA transfers = CNT<13:0> + 1.