M16CSLASH26 datasheet(76/239 Pages) RENESAS

76 / 239 page

Renesas Technology Corp.

DMAC

M16C/26 Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Under

development

Preliminary Specifications Rev. 0.9

Specifications in this manual are tentative and subject to change.

Figure 1.11.4. DMAC register (3)

(b8)

(b15)

Function

Transfer counter

Set a value one less than the transfer count

Symbol

Address

When reset

TCR0

002916, 002816

Indeterminate

TCR1

003916, 003816

Indeterminate

DMAi transfer counter (i = 0, 1)

Transfer count

specification

000016 to FFFF16

(b23)

(b8)

(b16)(b15)

(b19)

Function

Source pointer

Stores the source address

Symbol

Address

When reset

SAR0

002216 to 002016

Indeterminate

SAR1

003216 to 003016

Indeterminate

DMAi source pointer (i = 0, 1)

Transfer address

specification

0000016 to FFFFF16

Nothing is assigned.

In an attempt to write to these bits, write 0.

The value, if read, turns out to be 0.

Symbol

Address

When reset

DAR0

002616 to 002416

Indeterminate

DAR1

003616 to 003416

Indeterminate

(b8)

(b15)

(b16)

(b19)

Function

Destination pointer

Stores the destination address

DMAi destination pointer (i = 0, 1)

Transfer address

specification

0000016 to FFFFF16

(b23)

Nothing is assigned.

In an attempt to write to these bits, write 0.

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