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CHAPTER 17 DMA CONTROLLER
I Transfer termination operation (when both addresses are changed)
❍ Bus width: 16 bits, Data length: 8/16 bits
CLK
Addr pin
D
Data pin
D
RD
WRn
W
AKSE = 1
DACK
AKDE = 1
Both = 1
EPSE = 1
DEOP
EPDE = 1
Both = 1
❍ Bus width: 16 bits, Data length: 32 bits
CLK
Addr pin
SH
SL
Data pin
SH
RD
WRn
AKSE = 1
DACK AKDE = 1
Both = 1
EPSE = 1
DEOP EPDE = 1
Both = 1
CLK
Addr pin
#2H
Data pin
#2H
RD
W
WRn
392
S
D
S
S
D
W
DH
DL
SL
DH
DL
W
W
#2L
#2L
W
D
#0H
#1H
S
D
#0H
#1H
W
W
SH
SL
DH
SH
SL
DH
W
#1L
#2H
#2L
#1L
#2H
#2L
W
W
W
W
DL
#0H
#1H
#1L
DL
#0H
#1H
#1L
W
W
W
W
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