M30218 Datasheet, PDF (53/179 Pages) Mitsubishi Electric Semiconductor – M30218 Group

DMAC
Mitsubishi microcomputers
M30218 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
(2) DMAC Transfer
Any combination of even or odd transfer read and write addresses is possible. Table EC-2 shows the
number of DMAC transfer cycles.
The number of DMAC transfer cycles can be calculated as follows:
No. of transfer cycles per transfer unit = No. of read cycles x j + No. of write cycles x k
Table EC-2. No. of DMAC transfer cycles
Transfer unit
Access address
8-bit transfers
(DMBIT="1")
16-bit transfers
(DMBIT="0")
Even
Odd
Even
Odd
singelchip mode
No. of
No. of
read cycles
write cycles
1
1
1
1
1
1
2
2
Coefficient j, k
Internal memory
Internal ROM/RAM
SFR area
1
2
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