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STV9427 Datasheet(PDF) 7 Page - STMicroelectronics

Part # STV9427
Description  HIGH SPEED MULTISYNCH ON-SCREEN DISPLAY FOR MONITOR
PDF  20 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STV9427 Datasheet(HTML) 7 Page - STMicroelectronics

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FUNCTIONAL DESCRIPTION (continued)
I.3 - Addressing Space
I.3.1 - General Mapping
STV9427/28/29 registers, RAM and ROM are
mapped in a 16Kbytes addressing space. The
mapping is the following :
0000
03FF
1024 bytes RAM
Descriptors character
codes and user
definable characters
0400
Empty Space
07FF
0800
Character Generator
ROM
3FBF
3FC0
Empty Space
3FD0
3FCF
Internal Registers
3FD0
I.3.2 - I
2C Registers Mapping
3FCF
3FD0
PWM0
PWM registers
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6
3FD7
PWM7
3FD8
Reserved
3FDF
3FE0
Color 0
Color look-up
table (CLUT)
Color 1
Color 2
Color 3
Color 4
Color 5
Color 6
3FE7
Color 7
3FE8
Color 8
Color 9
Color 10
Color 11
Color 12
Color 13
Color 14
3FEF
Color 15
3FF0
Line Duration
Top Margin
Horizontal Delay
Character Height
Display Control
Control registers
Locking Time Constant
Capture Time Constant
Initial Pixel period
3FF8
Frequency Multiplier
3FF9
Reserved
3FFF
I.4 - Register Set
I.4.1 - PWM Registers
The eight registers described below are only avail-
able with the STV9429 :
PULSE WIDTH MODULATOR 0 (STV9429)
3FD0 V07
V06
V05
V04
V03
V02
V01
V00
V0[7:0] : Digital value of the 1
st PWM D to A converter.
PULSE WIDTH MODULATOR 1 (STV9429)
3FD1 V17
V16
V15
V14
V13
V12
V11
V10
V1[7:0] : Digital value of the 2
nd PWM DAC.
PULSE WIDTH MODULATOR 2 (STV9429)
3FD2 V27
V26
V25
V24
V23
V22
V21
V20
V2[7:0] : Digital value of the 3
rd PWM DAC.
PULSE WIDTH MODULATOR 3 (STV9429)
3FD3 V37
V36
V35
V34
V33
V32
V31
V30
V3[7:0] : Digital value of the 4
th PWM DAC.
PULSE WIDTH MODULATOR 4 (STV9429)
3FD4 V47
V46
V45
V44
V43
V42
V41
V40
V4[7:0] : Digital value of the 5
th PWM DAC.
PULSE WIDTH MODULATOR 5 (STV9429)
3FD5 V57
V56
V55
V54
V53
V52
V51
V50
V5[7:0] : Digital value of the 6
th PWM DAC.
PULSE WIDTH MODULATOR 6 (STV9429)
3FD6 V67
V66
V65
V64
V63
V62
V61
V60
V6[7:0] : Digital value of the 7
th PWM DAC.
PULSE WIDTH MODULATOR 7 (STV9429)
3FD7 V77
V76
V75
V74
V73
V72
V71
V70
V7[7:0] : Digital value of the 8
th PWM DAC.
Note : Power on reset default value of PMW register is 00H
STV9427 - STV9428 - STV9429
7/20



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