Typewriter User Manual

MOTOROLA MC68340 USER’S MANUAL 6- 45

* Source address is equal to $6001, and odd address.

MOVE.L SARADD,DMASAR1(A0)

* Initialize destination operand address

* Destination address is equal to $10000, and even address.

MOVE.L DARADD,DMADAR1(A0)

* Initialize the byte transfer count register

* The number of bytes to be transferred is $14 or 20 bytes

MOVE.L NUMBYTE,DMABTC1(A0)

* Channel control reg. init. and Start DMA transfers

* No interrupts are enabled, source (read) cycle.

* Increment the source and destination addresses.

* Source size is byte, destination size is word. REQ is external cycle steal.

* dual-address transfers, start the DMA transfers.

MOVE.W #$1DB1,DMACCR1(A0)

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END

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cale Semiconductor,

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