M16CSLASH62M datasheet(91/615 Pages) RENESAS

tên linh kiện	M16C/62M

Giải thích chi tiết về linh kiện	16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/60 SERIES

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Mitsubishi microcomputers

M16C / 62A Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

DMAC

1-72

(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”. The value, if read, turns out to be “0”.

Figure 1.13.4. DMAC register (3)

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