6V7 datasheet(72/298 Pages) RENESAS

部件名	6V7

功能描述	SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

PDF	298 Pages

Scroll/Zoom	100%

制造商	RENESAS [Renesas Technology Corp]

网页	http://www.renesas.com

标志

72 / 298 page

Rev.1.00

May 18, 2004

page 72 of 296

M306V7MG/MH/MJ/MJA-XXXFP, M306V7FG/FH/FJ/FJAFP

Figure 2.9.2 DMA0 request cause select register

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 INT 0 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 INT 0 pin (DMS=1)

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

/OSD1 (DMS=1)

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

/OSD2 (DMS=1)

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

/Multi-master I2C-BUS interface 0

(DMS=1)

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 : Data slicer

Bit name

DMS

DMA request cause

expansion bit

0 : Normal

1 : Expanded cause

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