Computer Hardware User Manual

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15.9 DMAC Timing Charts
15.9.2 Timing Charts of Data Transfer Block
This section shows timing charts of the data transfer block.
■
Data Transfer Block for 16-Bit or 8-Bit Data
❍
Transfer source area: external, transfer destination area: external
❍
Transfer source area: external, transfer destination area: external RAM
CLK
DREQn
Addr pin
Data pin
RDXD
WRnX
DACK
EOP
(A)
W
D
DS#2
S#2
D
DS
S
W
D
DS
S
W
D
DS
S
(A)
CLK
DREQn
Addr pin
Data pin
RDXD
WRnX
DACK
EOP
S#2
S#2 S
S
S
S
S
S