M16CSLASH26 datasheet(74/239 Pages) RENESAS

Nome de Peças	M16C/26

Descrição Electrónicos	16-BIT CMOS SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/20 SERIES

PDF	239 Pages

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Fabricante Electrônico	RENESAS [Renesas Technology Corp]

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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.

DMA0 request cause select register

Symbol

Address

When reset

DM0SL

03B816

0016

Function

Bit symbol

DMA request cause

select bit

DSEL0

DSEL1

DSEL2

DSEL3

Nothing is assigned.

In an attempt to write to these bits, write 0 . The value, if read, turns out to be 0 .

Software DMA

request bit

If software trigger is selected, a

DMA request is generated by

setting this bit to 1 (When read,

the value of this bit is always 0 )

DSR

b3 b2 b1 b0

0 0 0 0 : Falling edge of INT0 pin

0 0 0 1 : Software trigger

0 0 1 0 : Timer A0

0 0 1 1 : Timer A1

0 1 0 0 : Timer A2

0 1 0 1 : Timer A3

0 1 1 0 : Timer A4 (DMS=0)

/two edges of INT0 pin (DMS=1)

0 1 1 1 : Timer B0 (DMS=0)

1 0 0 0 : Timer B1 (DMS=0)

1 0 0 1 : Timer B2 (DMS=0)

1 0 1 0 : UART0 transmit

1 0 1 1 : UART0 receive

1 1 0 0 : UART2 transmit

1 1 0 1 : UART2 receive

1 1 1 0 : A-D conversion

1 1 1 1 : UART1 transmit

Bit name

DMA request cause

expansion select bit

DMS

0 : Normal

1 : Expanded cause

Figure 1.11.2. DMAC register (1)

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