M306V2 Mitsubishi, M306V2 Datasheet - Page 72
M306V2
Manufacturer Part Number
M306V2
Description
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
Manufacturer
Mitsubishi
Datasheet
1.M306V2.pdf
(276 pages)
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Figure 2.9.3 DMA1 request cause select register
Figure 2.9.4 DMAi control register (i = 0, 1)
b 7
D M A i c o n t r o l r e g i s t e r
b 6
b 5
b 4
DMA1 request cause select register
b7
b 3
b6
b 2
b5
b 1
b4
b 0
b3
N o t e s 1 : D M A r e q u e s t c a n b e c l e a r e d b y r e s e t t i n g t h e b i t .
N o t h i n g i s a s s i g n e d .
I n a n a t t e m p t t o w r i t e t o t h e s e b i t s , w r i t e “ 0 ” . T h e v a l u e , i f r e a d , t u r n s o u t t o b e “ 0 . ”
b2
B i t s y m b o l
D M B I T
D M A S L
D M A S
D M A E
D S D
D A D
b1
S y m b o l
D M i C O N ( i = 0 , 1 )
2 :T h i s b i t c a n o n l y b e s e t t o “ 0 . ”
3 :S o u r c e a d d r e s s d i r e c t i o n s e l e c t b i t a n d d e s t i n a t i o n a d d r e s s d i r e c t i o n s e l e c t b i t
b0
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
c a n n o t b e s e t t o “ 1 ” s i m u l t a n e o u s l y .
Nothing is assigned.
In an attempt to write to these bits, write “0.”
The value, if read, turns out to be “0.”
Bit symbol
DMS
DSEL0
DSEL1
DSEL2
DSEL3
DSR
Symbol
DM1SL
T r a n s f e r u n i t b i t s e l e c t b i t
R e p e a t t r a n s f e r m o d e
D M A r e q u e s t b i t ( N o t e 1 )
D M A e n a b l e b i t
S o u r c e a d d r e s s d i r e c t i o n
s e l e c t b i t ( N o t e 3 )
D e s t i n a t i o n a d d r e s s
d i r e c t i o n s e l e c t b i t ( N o t e 3 )
B i t n a m e
DMA request
cause expansion bit
DMA request cause
Software DMA
request bit
0 0 2 C
s e l e c t b i t
Bit name
A d d r e s s
1 6
select bit
, 0 0 3 C
Address
03BA
1 6
0 : 1 6 b i t s
1 : 8 b i t s
0 : S i n g l e t r a n s f e r
1 : R e p e a t t r a n s f e r
0 : D M A n o t r e q u e s t e d
1 : D M A r e q u e s t e d
0 : D i s a b l e d
1 : E n a b l e d
0 : F i x e d
1 : F o r w a r d
0 : F i x e d
1 : F o r w a r d
16
b3 b2 b1 b0
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”)
0 0 0 0 : Falling edge of INT
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 (DMS = 0)
0 1 1 0 : Timer A4 (DMS = 0)
0 1 1 1 : Timer B0
1 0 0 0 : Timer B1
1 0 0 1 : Timer B2
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 : V
0 : Normal
1 : Expanded cause
W h e n r e s e t
0 0 0 0 0 ? 0 0
F u n c t i o n
/OSD1 (DMS = 1)
/OSD2 (DMS = 1)
/Multi-master I
(DMS = 1)
SYNC
When reset
2
00
and ON-SCREEN DISPLAY CONTROLLER
Function
16
MITSUBISHI MICROCOMPUTERS
2
C-BUS interface 1
1
M306V2ME-XXXFP
pin
R
( N o t e 2 )
M306V2EEFP
W
R
W
Rev. 1.0
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