HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 356

• Manufacturer Part Number: HD6412332
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Software Activation: An example is shown in which the DTC is used to transfer a block of 128
bytes of data by means of software activation. The transfer source address is H'1000 and the
destination address is H'2000. The vector number is H'60, so the vector address is H'04C0.
[1] Set MRA to incrementing source address (SM1 = 1, SM0 = 0), incrementing destination
[2] Set the start address of the register information at the DTC vector address (H'04C0).
[3] Check that the SWDTE bit in DTVECR is 0. Check that there is currently no transfer activated
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address (DM1 = 1, DM0 = 0), block transfer mode (MD1 = 1, MD0 = 0), and byte size (Sz =
0). The DTS bit can have any value. Set MRB for one block transfer by one interrupt (CHNE =
0). Set the transfer source address (H'1000) in SAR, the destination address (H'2000) in DAR,
and 128 (H'8080) in CRA. Set 1 (H'0001) in CRB.
by software.
transfer register
transfer register
Second data
information
information
First data
Figure 8.13 Chain Transfer when Counter = 0
Chain transfer
(counter = 0)
Input circuit
Upper 8 bits
Input buffer
of DAR