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參數(shù)資料
| 型號： | STV9420 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | MULTISYNC ON-SCREEN DISPLAY FOR MONITOR |
| 中文描述： | 多頻屏幕的監(jiān)視器顯示 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大小： | 228K |
| 代理商： | STV9420 |
FUNCTIONAL DESCRIPTION
(continued)
I.3 - Addressing Space
STV9420/21registers,RAMandROMaremapped
in a 16Kbytesaddressing space. The mapping is
the following:
0000
1024 bytes
RAM
03FF
0400
Empty
Space
1FFF
2000
Character
Generator
ROM
32FF
3300
Empty
Space
3FFF
3FF0
Internal
Registers
3FFF
Descriptors character
codesuser definable
characters
I.4 - RegisterSet
LINE DURATION
3FF0
*
LD[5:0] : LINE DURATION (number of character
period,1LSB = 12 pixel periods).
-
-
-
-
LD5
1
LD4
1
LD3
1
LD2
1
LD1
1
LD0
1
HORIZONTALDELAY
3FF1
*
DD[7:0] : HORIZONTAL DISPLAY DELAY from
the H-SYNC reference falling edge to
the 1
st
pixel position of the character
strips.
Unit = 3 pixel periods.
DD7 DD6 DD5 DD4 DD3 DD2 DD1 DD0
0
0
0
0
1
0
0
0
CHARACTERS HEIGHT
3FF2
*
CH[5:0] : HEIGHT of the character strips in scan
lines. For each scan line, the number of
theslice whichis displayedis given by:
SLICE-NUMBER
round
SCAN-LINE-NUMBER = Number of the current scan
line of the strip.
-
-
-
-
CH5 CH4 CH3 CH2 CH1 CH0
0
1
0
0
1
0
=
SCAN
±
LINE
±
NUMBER x 18
CH[5:0]
DISPLAYCONTROL
3FF3
*
OSD
FBK
OSD FBK
0
: ON/OFF(if 0,R, G,BandFBLKare 0).
: Fastblankingcontrol :
= 1 : FBLK = 1, forcing black where
theseis no display,
= 0 : FBLK is active only during
characterdisplay.
FL[1:0] : Flashingmode :
- 00 : No flashing. The character
attributeis ignored,
- 01 : 1/1 flashing(a duty cycle = 50%),
- 10 : 1/3 flashing,
- 11: 3/1flashing.
P[8:6]
: Address of the 1
st
descriptor of the
currentdisplayed pages.
P[13:9]and P[5:0] = 0 ; up to 8 different
pagescan be stored in the RAM.
FL1
0
FL0
0
-
-
P8
0
P7
0
P6
0
0
LOCKINGCONDITION TIME CONSTANT
3FF4
*
FR
FR
0
AS2
0
AS1
1
AS0
0
-
-
BS2 BS1
0
BS0
0
1
: FreeRunning;if= 1PLLisdisabledand
the pixelfrequencykeeps its last value.
AS[2:0] : Phase constant during locking
conditions.
BS[2:0] : Frequency constant during locking
conditions.
CAPTURE PROCESS TIME CONSTANT
3FF5
*
AF[2:0] : Phase constant during the capture
process.
BF[2:0] : Frequency constant during the capture
process.
-
-
AF2
0
AF1
1
AF0
1
-
-
BF2
0
BF1
1
BF0
1
INITIALPIXELPERIOD
3FF6
*
PP[7:0] : Value to initialize the pixel period of the
PLL.
PP7
0
PP6
0
PP5
1
PP4
0
PP3
1
PP2
0
PP1
0
PP0
0
FREQUENCY MULTIPLIER
3FF7
-
-
-
-
-
-
-
-
FM3 FM2 FM1 FM0
1
0
*
1
0
FM[3:0] : Frequency multiplier of the crystal
frequency to reach the high frequency
used by the PLL to derive the pixel
frequency.
STV9420 - STV9421
7/16
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| STV9421 | MULTISYNC ON-SCREEN DISPLAY FOR MONITOR |
| STV9422 | MULTISYNC ON-SCREEN DISPLAY FOR MONITOR |
| STV9423 | MULTISYNC ON-SCREEN DISPLAY FOR MONITOR |
| STV9424 | MULTISYNC ON-SCREEN DISPLAY FOR MONITOR |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STV9421 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MULTISYNC ON-SCREEN DISPLAY FOR MONITOR |
| STV9422 | 制造商:Panasonic Industrial Company 功能描述:IC |
| STV9422S | 制造商:STMicroelectronics 功能描述: |
| STV9423 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MULTISYNC ON-SCREEN DISPLAY FOR MONITOR |
| STV9424 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MULTISYNC ON-SCREEN DISPLAY FOR MONITOR |
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