Toshiba TLCS-90 Series Data Book page 241

8 bit microcontroller

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Initial setting for serial receiving

(FF71H) ,FFOOH

(FF73H) ,FFEBH

Set the micro DMA processing mode for the

Set the number of transfer

Set FFOOH for the destination address.

receiving buffer) address.

Set the trans fer mode (I-byt e transfer:

Increment destination address).

Interrupt processing program

after serial data receiving

Fig. 3.3 (5)

Example of Micro DMA Processing

The bus operation in the general purpose interrupt processing and the

micro DMA processing is included in "Table 3.2

Bus Operation for

Executing Instructions" in the previous section.

The micro DMA processing time (when the number of transfer is not

decremented to 0) is 46 states without regard to the I-byte/2-byte

transfer mode.

Figure 3.3 (6) shows the interrupt processing flowchart.

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