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PDF SDA5251 Data sheet ( Hoja de datos )

Número de pieza SDA5251
Descripción TVTEXT 8-Bit Microcontroller
Fabricantes Siemens 
Logotipo Siemens Logotipo



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No Preview Available ! SDA5251 Hoja de datos, Descripción, Manual

ICs for Consumer Electronics
TVTEXT 8-Bit Microcontroller, ROMless-Version:
SDA 5250
TVTEXT 8-Bit Microcontroller, ROM-Versions:
SDA 5251
SDA 5252
SDA 5254
SDA 5255
Preliminary Data Sheet 1998-04-08

1 page




SDA5251 pdf
SDA 525x
1 General Description
The SDA 525x contains a slicer for TTX, VPS and WSS, an accelerating acquisition
hardware modul, a display generator for “Level 1” TTX data and an 8 bit microcontroller
running at 333 ns cycle time. The controller with dedicated hardware guarantees
flexibility, does most of the internal processing of TTX acquisition, transfers data to/from
the external memory interface and receives/transmits data via I2C and UART user
interfaces. The block diagram shows the internal organization of the SDA 525x. The
Slicer combined with dedicated hardware stores TTX data in a VBI buffer of 1 Kbyte. The
microcontroller firmware does the total acquisition task (hamming- and parity-checks,
page search and evaluation of header control bits) once per field.
2 Features
Acquisition
• Feature selection via special function register
• Simultaneous reception of TTX, VPS and WSS
• Fixed framing code for VPS and TTX
• Acquisition during VBI
• Direct access to VBI RAM buffer
• Acquisition of packets X/26, X/27, 8/30 (firmware)
• Assistance of all relevant checks (firmware)
• 1-bit framing code error tolerance (switchable)
Display
• Features selectable via special function register
• 50/60 Hz display
• Level 1 serial attribute display pages
• Blanking and contrast reduction output
• 8 direct addressable display pages for SDA 5250, SDA 5254 and SDA 5255
• 1 direct addressable display page for SDA 5251 and SDA 5252
• 12 × 10 character matrix
• 96 character ROM (standard G0 character set)
• 143 national option characters for 11 languages
• 288 characters for X/26 display
• 64 block mosaic graphic characters
• 32 characters for OSD in expanded character ROM + 32 characters inside OSD box
• Conceal/reveal
• Transparent foreground/background - inside/outside of a box
• Contrast reduction inside/outside of a box
• Cursor (colour changes from foreground to background colour)
• Flash (flash rate 1s)
Semiconductor Group
5
1998-04-08

5 Page





SDA5251 arduino
SDA 525x
4.4 Pin Configuration P-LCC-84-2 (Emulator-Version)
P0.6
P0.7
STOP_OCF
ENE
P2.3/ANA3
P2.2/ANA2
P2.1/ANA1
P2.0/ANA0
VSSA
FIL3
FIL1
FIL2
VDDA
Ι REF
CVBS
P3.7
P3.6
P3.5
P3.4
P3.3
P3.2
53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
54 32
55 31
56 30
57 29
58 28
59 27
60 26
61 25
62 24
63 23
64 SDA 5250 22
65 21
66 20
67 19
68 18
69 17
70 16
71 15
72 14
73 13
74 12
75 76 77 78 79 80 81 82 83 84 1 3 4 5 6 7 8 9 10 11
D5
D0
D6
A0
D7
A1
A2
A10
A3
PSEN
A4
A11
A5
A9
A6
A8
A7
A13
A12
A14
A15
UEP10154_B
Figure 5
Pin Configuration P-LCC-84-2 (Emulator-Version)
(top view)
Semiconductor Group
11
1998-04-08

11 Page







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