TPU2735

TPU 2735 Teletext Processor Edition Jan. 13, 1993 6251-312-4E ITT Semiconductors TPU 2735 Contents Page 4 5 6 6 6 6 7 8 10 11 11 11 13 13 14 15 15 15 15 15 15 15 16 17 17 18 18 18 19 19 20 20 21 21 22 23 27 28 28 28 28 28 29 29 2 Section 1. 2. 3. 3.1. 3.2. 3.2.1. 3.2.2. 3.3. 3.4. 3.5. 3.5.1. 3.5.2. 3.5.3. 3.5.4. 3.5.5. 4. 4.1. 4.2. 4.3. 4.3.1. 4.3.2. 4.4. 5. 6. 6.1. 6.2. 6.3. 6.4. 7. 7.1. 7.2. 7.3. 7.4. 7.5. 7.6. 7.7. 7.8. 8. 8.1. 8.2. 8.3. 8.4. 8.5. 8.6. Title Introduction Functional Description Specifications Outline Dimensions Pin Connections 40-Pin DIL Plastic Package 44-Pin PLCC Package Pin Descriptions Pin Circuits Electrical Characteristics Absolute Maximum Ratings Recommended Operating Conditions Characteristics of the Digital Section Characteristics, RGB Interface Characteristics of the External RAM Various Operation Modes of the TPU 2735 The Menu Mode Teletext Display without Interlaced Lines The Effect of Errors in the Transmission of Teletext Data Errors in the Hamming-Code Protected Data Errors in Data with Parity Check Multipage Conflict Situation RAM Organization Controlling the TPU 2735 with the CCU 2030, CCU 2050 or CCU 2070 The Address Commands The Data Transfer Command The Status Test Command The IM Bus Hardware Test/Configuration Register The Control Registers of Register Chain 2 The Page Request Registers, R-PRx The Page Selection Register, R-PS The Subcode Register, R-SC The Display Selection Register, R-DS The Data Acquisition Control Register, R-DAC...