M306V5ME Datasheet, PDF (64/262 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
M306V5ME-XXXSP
M306V5EESP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
(1)16-bit transfers from even address and the source address is even.
BCLK
Address
bus
RD signal
WR signal
Data
bus
CPU use
CPU use
Source
Destination
Dummy
cycle
Source
Destination
Dummy
cycle
CPU use
CPU use
(2) 16-bit transfers and the source address is odd
BCLK
Address
bus
RD signal
WR signal
Data
bus
CPU use
CPU use
Source
Source + 1 Destination
Dummy
cycle
Source
Source + 1 _Destination
Dummy
cycle
CPU use
CPU use
(3) One wait is inserted into the source read under the conditions in (1)
BCLK
Address
bus
CPU use
Source
Destination
Dummy
cycle
RD signal
WR signal
Data
bus
CPU use
Source
Destination
Dummy
cycle
CPU use
CPU use
(4) One wait is inserted into the source read under the conditions in (2)
BCLK
Address
bus
RD signal
WR signal
Data
bus
CPU use
CPU use
Source
Source + 1
Destination
Dummy
cycle
CPU use
Source
Source + 1
Destination
Dummy
cycle
CPU use
Note: The same timing changes occur with the respective conditions at the destination as at the source.
Figure 2.9.8 Example of the transfer cycles for a source read
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Rev. 1.0