Service manual

ManualsBrandsSharp ManualsComputer equipmentmz-800

MZ-800

b)

Write

format

register

(WR) (OUT &

CC)

•

WMD

0 - 2 .....

Selects

the

logical

operational

mode

for

read-

modify-write

.

•

B/A

(NOTE)

Standard MZ-800

--->

"0":

Frame A access .....

• I, Il,

rn,

IV .....

Frame A is accessed

for

the

display

mode.

"1":

Frame B access .....

Color

plane

designation

Frame B is accessed

for

the

display

mode.

Write

mode

'2

1 0

IV

ill

IT

VD : VRAM data

WMD

B/",:

Color

plane Function

[WD:

Write

data 1

-SINGLE-- .

+-

0 0 1 0 (*)

0/1

-~

0/1-

-----lc~~~I-;ne

of;;1~WD,

wri;---------

WRITE

~

320 x 200, i

Color

plane

of

"0":

Fixed

o r

0-

--t

r

-

1

-

11

Frame

A:

0 I

o~T,

~/~

+,1,'~/01,

-

4/16

colors

jcolor

pl~~~--;:;-0Y-WD

<:BVO--------

OIl

I 640 x 200,

,Color

plane

of

"0":

Fixed

----t-- -

---j

,--

t---r-

--;1

I---~'

----------

-------.-------

o I

__

~

01

Frame

B:

1

:_~/~

.j,_~l_i_

0~~0/1:

1/4

colors

ll~-:;~~;~~

~:~~:::F~;

VD

______ _

0-1

I 1 I

,I

1

iColorplaneof"l":WD.VD

-,1

-~

-Iu=i=-

('F~::

i

;;;;:-;oo@,

!

:;;~~:~~';:f::~~,:::',:,O;--'

-------

I

r-~--.

_

0/~_+0/-1_·1i

_

x--~--~"li

~2~I:r~o~_~

(Character

write

to

the

graphic

plane)

'L

x

I,

0/1

~

OIl

OIl

i

OIl

I.

.'

I

Color

plane

of

"1":

WD

i I , , 16 colors I

x

i_.

0

__

---l+I---x-i--lI----~--t~

!

0/~r~4~-=-;~

®,

1

Calor

plane

of

"0":

Writes

"0".

i I

___

~

__

J

__

><....t~~><_l_~l-~~olor

~

Calor

plane

of

"X":

Fixed

1 I x I x

,011

I x i

OIl!

640 x 200, !

to-~~_---

I

~-t-~~

i

0/1

i

0/

132:

:o~:~s

®,

-r-~rites

only-

bi.t

"1

~:-~-;-~~

i;;~pecific

calor.

I

f--

1

___

~

_9Q

.<>'~J.-~-'

x

-i--

~<:<>Iors

~

(Character

write

to

graphic

plane)

I

I

x I

OIl

11

0/1

I

OIl

T;1

I

3~~

x 1

200

,

I

Calor

plane

of

"1":

WD

+ VD

x

I

t'

I co

ors

1

r-

-

"0--

-r

-;-:--~-

-;-1o~1

~~~-;;-~®~-!

Calor

plane

of

"0":

WD·

VD

r-

--1--

~

x I

OIl

1 x ! x 1 calor, ® !

Calor

plane

of

"X":

Fixed

I I i

--"'-r-- -

----r----t-------

1

EXOR

OR

RESET

REPLACE

PSET

o

,

I

MZ-700

1

0

o

x i x :

OIl

I x I

OIl!

640 x 200,

11

__

+-

_____

! _

1I 1I

I I 4

~?Iors

.

_____

_

o 0 I 0 I 0 I 0 I 1 I MZ-700 ' Writes

WD

into the DATA,

ATB,

and

CG

area.

(*) Refer

to

Table-l

display

frame

NOTES:

•

Write

for

the

non-existing

VRAM

are

not

assured.

• The above

parameter

has

to

be set

up

for

the

MZ-700

mode.

•

BI

A

must

be set

to

"0"

for

the

standard

version

MZ-800.

23