M30622MA-XXXFP RENESAS [Renesas Technology Corp], M30622MA-XXXFP Datasheet - Page 95
M30622MA-XXXFP
Manufacturer Part Number
M30622MA-XXXFP
Description
16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.M30622MA-XXXFP.pdf
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DMAC
80
Table 1.16.2. No. of DMAC transfer cycles
(2) DMAC transfer cycles
8-bit transfers
(DMBIT= “1”)
16-bit transfers
(DMBIT= “0”)
Transfer unit
Any combination of even or odd transfer read and write addresses is possible. Table 1.16.2 shows the
number of DMAC transfer cycles.
The number of DMAC transfer cycles can be calculated as follows:
Coefficient j, k
Internal ROM/RAM
No wait
No. of transfer cycles per transfer unit = No. of read cycles x j + No. of write cycles x k
1
(BYTE = “H”)
(BYTE = “H”)
(BYTE = “L”)
(BYTE= “L”)
Internal memory
Bus width
16-bit
16-bit
8-bit
8-bit
Internal ROM/RAM
With wait
2
Access address
Even
Even
Even
Even
Odd
Odd
Odd
Odd
SFR area
2
No. of read No. of write No. of read No. of write
cycles
Single-chip mode
—
—
—
—
1
1
1
2
Separate bus
No wait
1
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
cycles
—
—
—
—
1
1
1
2
External memory
Separate bus
With wait
Memory expansion mode
Microprocessor mode
2
cycles
1
1
1
1
1
2
2
2
Mitsubishi microcomputers
M16C / 62 Group
Multiplex
bus
cycles
3
1
1
1
1
1
2
2
2
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