SAA5250P Philips Semiconductors, SAA5250P Datasheet
SAA5250P
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SAA5250P Summary of contents
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DATA SHEET SAA5250 Interface for data acquisition and control (for multi-standard teletext systems) Product specification File under Integrated Circuits, IC02 INTEGRATED CIRCUITS January 1987 ...
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... Addressing space bytes of the static memory Multiplexed address/data information is compatible with Motorola or Intel microcontrollers CIDAC is ‘MOTEL’ compatible PACKAGE OUTLINES SAA5250P: 40-lead DIL; plastic (SOT129); SOT129-1; 1996 December 02. SAA5250T: 40-lead mini-pack; plastic (VSO40); SOT158-1; 1996 December 02. January 1987 2 Product specification ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) k, full pagewidth January 1987 3 Product specification SAA5250 ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) handbook, halfpage January 1987 1 40 A10 VAL OUT 2 A9 VAL IN SYNC 4 37 CBB A7 DCK DB7 A2 31 DB6 10 A1 ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) PINNING FUNCTION MNEMONIC PIN NO. FUNCTION A10 and 1 and Memory address outputs used by CIDAC to address byte buffer memory VAL OUT 2 Validation output signal used to control the location of the window for the framing code. ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) FUNCTIONAL DESCRIPTION Microcontroller interface The microcontroller interface communicates with the CPU via the handshake signals DB7 DB0, ALE, CS, RD, WR. The microcontroller interface produces control commands as well as programming the registers to write their contents or read incoming status/data information from the buffer memory ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) Register organization R0 register Table 3 R0 Register contents R04 SLOW/FAST MODE 0 = slow mode 1 = fast mode handbook, full pagewidth CEEFAX FC DIDON FC short DIDON FC medium DIDON FC long NABTS FC All of the bytes (see Fig.3) are Hamming protected. The hatched bytes are always stored in the memory in order to be processed by the CPU (see section ‘ ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) If R04 = 1; the device operates in the fast mode. Prior to writing into the FIFO memory, the CIDAC searches for a start to a page which is variable due to the different prefixes: DIDON (long, medium and short): using the redundant bytes, SOH RS and SOH X (where bit affected by ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) Table 5 Format table FORMAT BYTE (1) B8, B6, B4 AND B2 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 Note MSB and B2 = LSB. ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) R3 register Table 7 R3 register contents R35 TO R30 6-BIT FORMAT MAXIMUM/DEFAULT VALUE 000000 = 0 000001 = 1 111111 = 63 This 6-bit byte gives: In the DIDON long and short mode, a maximum format in case of corrupted transmission (multiple errors on the ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) Fifo status register ( read R0 register) Table 11 Fifo register contents DB2 TO DB0 DB2 = 1 memory empty Once the relevant prefix and the right working modes have been given by the corresponding registers, a write command to the R6 register enables the CIDAC to accept and process serial data ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) Operation The CIDAC uses the same clock signal for data acquisition and internal processing, this allows the CIDAC to have a write and a read cycle during each character period (see Fig.13). The first half of the character period is a write cycle and the second half is a read cycle ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) Table 13 Hamming correction (coding) HEXADECIMAL NOTATION Note exclusive OR gate function B8, B6, B4 and B2 = data bits ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) Table 14 Hamming correction (decoding A.B Note exclusive OR gate function ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) Clock generation The clock generator does the following: acts as a buffer for the DCK clock generates the character clock As soon as a framing code has been detected, a divide by 8 counter is initialized and the character clock is started. The ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) Table 15 Continuity index processing result A Table 16 Format processing result A Note 1. A rejected 2. A accepted don’t care DIDON mediun (see Fig.5) Only data bytes are written into the FIFO memory. (In fast mode, information can be written into the FIFO memory only after a page detection ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) Table 20 Magazine and row address group processing results A Without prefix All the data following the framing code are stored in the FIFO memory. Table 21 Prefix processing ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) January 1987 Fig.4 DIDON (long) acquisition flow chart. 18 Product specification SAA5250 ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) handbook, full pagewidth DECREMENT FORMAT COUNTER 0 SET PAGE IN PROGRESS FLAG January 1987 LOAD FORMAT COUNTER FAST 1 PAGE IN PROGRESS 0 1 START OF PAGE DETECT DECREMENT FORMAT COUNTER. WRITE DATA BYTES INTO FIFO Fig ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) handbook, full pagewidth 1 DECREMENT FORMAT COUNTER SET PAGE IN PROGRESS FLAG January 1987 LOAD FORMAT COUNTER WITH INCOMING VALUE FAST PAGE IN 1 PROGRESS 0 FORMAT COUNTER = 0 0 START OF 0 PAGE DETECT ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) handbook, full pagewidth 0 January 1987 INITIALIZE CIDAC LOAD FORMAT COUNTER WITH IMPLICIT FORMAT FAST 1 DATA GROUP IN PROGRESS 0 SYNCHRONIZING PACKET 1 SET DATA GROUP IN PROGRESS FLAG WRITE CI BYTE INTO FIFO WRITE PS BYTE INTO FIFO DECREMENT FORMAT COUNTER ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) handbook, full pagewidth 0 SET PAGE IN PROGRESS FLAG January 1987 1 PAGE IN PROGRESS 0 ROW 0 WRITE ROW NUMBER INTO FIFO LOAD FORMAT COUNTER WITH IMPLICIT FORMAT DECREMENT FORMAT COUNTER. WRITE DATA BYTES INTO FIFO Fig ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) handbook, halfpage handbook, full pagewidth DCK SD January 1987 INITIALIZE CIDAC FRAMING 0 CODE DETECT 1 LOAD FORMAT COUNTER WITH EXPLICIT FORMAT FORMAT 1 COUNTER = 0 0 DECREMENT FORMAT COUNTER. WRITE DATA BYTES INTO FIFO MGH080 Fig ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) PARAMETER Supply voltage range Input voltage range Total power dissipation Operating ambient temperature range Storage temperature range D.C. CHARACTERISTICS (except SD and DCK 10% ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) SD and DCK D.C. CHARACTERISTICS (see Fig.10 unless otherwise specifi amb PARAMETER DCK Input voltage range (peak-to-peak value) Input current Input capacitance External coupling capacitor SD D ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) A.C. CHARACTERISTICS 10%; Reference levels for all inputs and outputs DB7 to DB0 amb PARAMETER Microcontroller interface Cycle time Address pulse width RD HIGH ALE HIGH Fig.11 ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) PARAMETER Demodulator interface (see SD and DCK D.C. CHARACTERISTICS) DCK LOW DCK HIGH Serial data set-up time Serial data hold time Validation signal set-up time Validation signal hold time Other I/O signals User defi ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) READ CYCLE handbook, full pagewidth ALE t AHRD BUS WRITE CYCLE ALE t AHRD WR t AHRD RD CS BUS Fig.11 Timing diagram for microcontroller interface (Intel). January 1987 LHLL t RL ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) January 1987 29 Product specification SAA5250 ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) handbook, full pagewidth January 1987 30 Product specification SAA5250 ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) handbook, full pagewidth DCK SD VAL IN/ SYNC VAL, CBB handbook, full pagewidth DCK VAL IN / SYNC SD VAL OUT t WCBB CBB January 1987 t DCKL t SSD t SVALI Fig.14 Timing diagram for demodulator interface. ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) PACKAGE OUTLINES DIP40: plastic dual in-line package; 40 leads (600 mil pin 1 index 1 DIMENSIONS (inch dimensions are derived from the original mm dimensions UNIT max. min. max. mm 4.7 0.51 4.0 inches ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) VSO40: plastic very small outline package; 40 leads pin 1 index 1 e DIMENSIONS (inch dimensions are derived from the original mm dimensions) A UNIT max. 0.3 2.45 mm 2.70 0.25 0.1 2.25 0.012 0.096 inches 0.010 ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities ...
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... Philips Semiconductors Interface for data acquisition and control (for multi-standard teletext systems) DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. ...