Mitsubishi Electric M32R Series User Manual page 510

Mitsubishi 32-bit risc single-chip microcomputers

Table of Contents

(2) Scan mode start after single mode execution

This special operation mode starts scan operation subsequently after executing conversion in

single mode (A-D conversion or comparate).

To start this mode in software, choose a software trigger using the Scan Mode Register 0 A-D

conversion start trigger select bit. Then set the said register's A-D conversion start bit to 1 during

single mode conversion operation.

To start this mode in hardware, choose a hardware trigger using the Scan Mode Register 0 A-D

conversion start trigger select bit. Then enter the hardware trigger selected with the said register

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(ADTRG signal or output event bus 3 for the A-D0 converter, or ADTRG signal or TID1 overflow/

underflow for the A-D1 converter).

If after selecting a hardware trigger using the A-D conversion start trigger select bit in both Single

Mode Register 0 and Scan Mode Register 0, you enter a hardware trigger (ADTRG signal or

output event bus 3 for the A-D0 converter, or ADTRG signal or TID1 overflow/underflow for the A-

D1 converter), the device first performs single mode conversion and then scan mode conversion

subsequently after executing the single mode conversion.

An A-D conversion interrupt request or a DMA transfer request (for the A-D0 converter only) can

be generated at completion of single mode conversion in the specified channel, or at completion

of one cycle of scan operation.

conversion starts

10-bit A-Di data register

Note : DMA transfer request: Can be generated for only the A-D0 converter.

Figure 11.1.8 Scan Mode Start after Single Mode Execution

Instructed to start

scan mode conversion

A-D conversion interrupt request or DMA transfer request (Note)

11.1 Outline of A-D Converters

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A-D CONVERTERS

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