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PC87591E Datasheet, PDF (93/437 Pages) National Semiconductor (TI) – LPC Mobile Embedded Controllers
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Embedded Controller Modules (Continued)
Device A Address Counter Register (ADCAn)
A double-word, read/write register. Holds the current address of either the source data item or the destination location, ac-
cording to DIR bit in DMACNTLn register. ADCAn is updated after each transfer cycle by INCAn, INCBn, ADA and ADB in
DMACNTLn register.
Location: Channel 0 - 00 FA0016
Channel 1 - 00 FA2016
Channel 2 - 00 FA4016
Channel 3 - 00 FA6016
Type: R/W
Bit
Name
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Device A Address Counter
Device A Address Register (ADRAn)
A double-word, read/write register. Holds the starting address of either the next source data block, or the next destination data
area, according to DIR bit in DMACNTLn register.
Location: Channel 0 - 00 FA0416
Channel 1 - 00 FA2416
Channel 2 - 00 FA4416
Channel 3 - 00 FA6416
Type: R/W
Bit
Name
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Device A Address
Device B Address Counter Register (ADCBn)
A double-word, read/write register. Holds the current address of either the source data item, or the destination location, ac-
cording to DIR bit in DMACNTLn register. ADCBn is updated after each transfer cycle by INCAn, INCBn, ADA and ADB in
DMACNTLn register. In Direct (Fly-By) mode, this register is not used.
Location: Channel 0 - 00 FA0816
Channel 1 - 00 FA2816
Channel 2 - 00 FA4816
Channel 3 - 00 FA6816
Type: R/W
Bit
Name
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Device B Address Counter
Device B Address Register (ADRBn)
A double-word, read/write register. Holds the starting address of either the next source data block or the next destination
data area, according to DIR bit in DMACNTLn register. In Direct (Fly-By) mode, this register is not used.
Location: Channel 0 - 00 FA0C16
Channel 1 - 00 FA2C16
Channel 2 - 00 FA4C16
Channel 3 - 00 FA6C16
Type: R/W
Bit
Name
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Device B Address
Revision 1.07
93
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