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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UPSD3233 датащи(PDF) 75 Page - STMicroelectronics |
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UPSD3233 датащи(HTML) 75 Page - STMicroelectronics |
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75 / 170 page  75/170 uPSD3234A, uPSD3234BV, uPSD3233B, uPSD3233BV DDC INTERFACE The basic DDC unit consists of an I2C interface and 256 bytes of SRAM for DDC data storage. The 8032 core is responsible of loading the contents of the SRAM with the DDC data. The DDC unit has the following features: – Supports both DDC1 and DDC2b Modes. – Features 256 bytes of DDC data - initialized by the 8032 – Supports fully automatic operation of DDC1 and DDC2b Modes – DDC operates in Slave Mode only. – SW Interrupt Mode available (existing design) The interface signals for the DDC can be mapped to pins in Port 4. The interface consists of the stan- dard VSYNC (P4.2), SDA (P4.0) and SCL (P4.1) DDC signals. The conceptual block diagram is il- lustrated in Figure 43. Figure 40. DDC Interface Block Diagram AI06628 INT DDCCON INTR (from SISTA) Initialization Synchronization DDCADR Address Pointer RAM Buffer RAMBUF VSYNCEN DDC1 Transmitter DDCDAT DDC1 Hold Register DDC1/DDC2 Detection SISTA SICON SCL1 SDA1 Bus Clock Generator Arbitration Logic S1DAT S1ADR1 S1ADR0 Shift Register DDC2B/DDC2AB DDC2B+Interface Monitor Address Monitor Address 7 10 XX EX_ DAT SW ENB DDC1 INT DDC1 EN SWH INT M0 |
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