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參數資料
| 型號： | STV9429 |
| 廠商： | 意法半導體 |
| 英文描述： | High Speed Multisynch On-Screen Display for Monitor(用于監(jiān)視器的屏上顯示) |
| 中文描述： | 高速Multisynch屏幕的顯示器顯示（用于監(jiān)視器的屏上顯示） |
| 文件頁數： | 10/20頁 |
| 文件大?。?/td> | 559K |
| 代理商： | STV9429 |
III - Code Format
The codes of STV9427/28/29 are all single byte
codes. There are basically 3 kinds of code :
- The control codes from 0 to 27 (00h to 1Bh) and
from 224 to 239 (E0h to EFh).
- The ROM character codes from 32 to 223 (20h to
DFh) and from 240 to 255 (F0h to FFh).
- The user definables characters codes from 240
to 254 (F0h to FFh).
Each row must begin with a displayable character
code followed by a NOP or any control code.
For code definition see Table 4.
III.1 - Control Codes
Control codes must be followed by a displayable
code (from 32 to 223), except for RTN & EOL. They
must not be used twice consecutively without a
displayable code between them.
The control code CALL is preceded by an address
byte.
The control codes are not displayed except if men-
tioned.
Code 0
(00h)
:
NOP : no operation and no display is
performed, can be used to spare a
location in RAM for an active control
code.
:
SYMETRIES :
TSHS(01)Top Side Horizontal
Symetry code displays the top half
side of the following displayable code
symetricaly to the bottom side.
BSHS(02)Bottom Side Horizontal
Symetry code displays the bottom half
side of the following displayable code
symetricaly to the top side.
HFLIP(03)Horizontal Flip code flips
horizontaly the following displayable
code.
LSVS(04)Left Side Vertical Symetry
code displays the left half side of the
following
displayable
symetricaly to the right side.
RSVS(05)Right Side Vertical symetry
code displays the right half side of the
following
displayable
symetricaly to the left side.
VFLIP(06)Vertical Flip code flips
verticaly the following displayable
code.
HVFLIP(07)Horizontal & Vertical Flip
code flips horizontaly and verticaly the
following displayable code.
Codes 1 to 7
(01h to 07h)
code
code
Codes 8
(08h)
(at odd @)
Code 09 to 14
(09h to 0Eh)
Code 15
(0Fh)
:
RTN : return to the CALL + 1 code
location (see Note).
:
Reserved
:
EOL, end of line terminates the
display of the current row.
:
COL0 to COL7 codes select 1 byte
among 8 within the CLUT in RAM. The
block selection is fixed by CLU3 bit of
the active character descriptor (see
Table 1 and Table 2).
:
CALL, these control codes switch the
display of the next character to the
code address given by the next byte
as following :
Codes 16 to 23
(10h to 17h)
Codes 24 to 27
(18h to 19h)
CALL CODE
(odd @) MSB
0
0
0
1
1
0
0
A9
ADDRESS BYTE
(even @) LSB
A8
A7
A6
A5
A4
A3
A2
A1
A[9:1]
: Address of the next code to be used (A0 = 0 only even
addresses).
Notes :
CALL and RTN code must be used twin. They cannot be nested.
CALL and RTN codes are displayed as a SPACE character.
CALL and RTN codes must be placed at odd addresses. They may
be preceed by a NOP in order to place them at the right position.
Codes 28 to 31
(1Ch to 1Fh)
Code 224 to 239
(E0h to EFh)
to EFh) are used combined with all
other character codes 32 to 223 (10h
to DFh) and placed before the target
character.
The first set of accents, 224 to 231 (E0h
to E7h) must be used with lower case
letters. The 5 upper slices of the target
character are replaced by the accent
shape.
The second set of accents, 232 to 239
(E8h to EFh) must be used with the
upper case letters (capital letters). The
3 upper slices of the target character
are replaced by the accent shape.
Accent code must always be followed
by a displayable character or a space.
:
Reserved
:
Accent shapes from 224 to 239 (E0h
III.2 - ROM Character Codes
Codes 32 to 223
(20h to DFh) and
Codes 240 to 254
(F0h to FEh)
: ROM character shapes are
described as 12x18 pixel matrix as
shown in Table 5.
It comprises 60 logos dedicated for
monitor application (Horizontal
position, keystone, ...), 25 characters
for horizontal bar-graph and
additional shapes.
FUNCTIONAL DESCRIPTION
(continued)
STV9427 - STV9428 - STV9429
10/20
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