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able of Contents Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pins Common to Both the Z85230 and Z80230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin Descriptions Exclusive to the Z85230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin Descriptions Exclusive to the Z80230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4 6 7 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Input/Output Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 ESCC Data Communications Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 36 Z80230/Z85230 Enhancements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-Byte Transmit FIFO Buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-Byte Receive FIFO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 7 PRIME (WR7’) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CRC Reception in SDLC Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TxD Forced High in SDLC with NRZI Encoding When Marking Idle . . . . . . . . . . Improved Transmit Interrupt Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DPLL Counter Tx Clock Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Read Register 0 Status Latched During Read Cycle . . . . . . . . . . . . . . . . . . . . . . . . Software Interrupt Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fast SDLC Transmit Data Interrupt Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SDLC FIFO Frame Status Enhancement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FIFO Enable/Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FIFO Read Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FIFO Write Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SDLC Status FIFO Anti-Lock Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 22 23 24 26 27 27 28 28 29 29 29 31 31 32 32 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Initializing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Read Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 33 33 55 Z80230 Interface Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Z80230 Write Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Z80230 Read Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Z80230 Interrupt Acknowledge Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 71 72 73 Z85230 Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Z85230 Read Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Z85230 Write Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Z85230 Interrupt Acknowledge Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 75 75 76 == (QKDQFHG6HULDO&RPPXQLFDWLRQV&RQWUROOHU LY Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Standard Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Z85230 AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Z80230/Z85230 Errata . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IUS Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IUS Problem Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RTS Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RTS Problem Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Automatic TxD Forced High Problem Description . . . . . . . . . . . . . . . . . . . . . . . . Automatic TxD Forced High Problem Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . SDLC FIFO Overflow Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SDLC FIFO Overflow Problem Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Default RR0 Value Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Default RR0 Value Problem Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Default RR10 Value Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Default RR10 Value Problem Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CRC Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CRC Problem Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 101 102 104 105 105 106 106 106 107 107 107 107 107 108 Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Z85230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Z80230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Part Number Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 111 111 111 111 112 == (QKDQFHG6HULDO&RPPXQLFDWLRQV&RQWUROOHU Y List of Figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. Figure 26. Figure 27. Figure 28. Figure 29. Figure 30. Figure 31. Figure 32. Figure 33. 36 Z85230 Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Z80230 Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Z85230 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Z80230 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ESCC Transmit Data Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ESCC Receive Data Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 ESCC Interrupt Priority Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Various ESCC Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Detecting 5- or 7-Bit Synchronous Characters . . . . . . . . . . . . . . . . . . . . . . 17 SDLC Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Data Encoding Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Write Register 7 Prime (WR7’) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 DMA Request on Transmit Deactivation Timing . . . . . . . . . . . . . . . . . . . . 25 TxIP Latching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 DPLL Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 SDLC Frame Status FIFO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 SDLC Byte Counting Detail 32 Z80230 Write Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Z80230 Read Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Z80230 Interrupt Acknowledge Cycle Timing . . . . . . . . . . . . . . . . . . . . . . 74 Read Cycle Timing (Z85230) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Write Cycle Timing (Z85230) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Interrupt Acknowledge Cycle Timing (Z85230) . . . . . . . . . . . . . . . . . . . . . 76 Standard and Open-Drain Test Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Z80230 Read/Write Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Z80230 Interrupt Acknowledge Timing Diagram . . . . . . . . . . . . . . . . . . . . 81 Z80230 Reset Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Z80230 General Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Z85230 Read/Write Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Z85230 Reset Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Z85230 Interrupt Acknowledge Timing Diagram . . . . . . . . . . . . . . . . . . . . 92 Z85230 Cycle Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Z85230 System Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 == (QKDQFHG6HULDO&RPPXQLFDWLRQV&RQWUROOHU YL Figure 34. Figure 35. Figure 36. Figure 37. 36 Resetting Highest IUS from Lower Priority . . . . . . . . . . . . . . . . . . . . . . . Automatic RTS Deactivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-Pin DIP Package Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44-Pin PLCC Package Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 105 109 110 == (QKDQFHG6HULDO&RPPXQLFDWLRQV&RQWUROOHU YLL List of Tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17. Table 18. Table 19. Table 20. Table 21. Table 22. Table 23. Table 24. Table 25. Table 26. Table 27. Table 28. Table 29. Table 30. Table 31. Table 32. Table 33. Table 34. 36 ESCC Write Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ESCC Read Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Data Encoding Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Z80230 Register Map (Shift Left Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . Z80X30 Register Map (Shift Right Mode) . . . . . . . . . . . . . . . . . . . . . . . . . Z85230 Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 7’ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Register 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Read Register 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Read Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Read Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Read Register 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Read Register 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Read Register 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Read Register 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Read Register 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Read Register 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Read Register 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Read Register 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 11 21 35 36 37 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 == (QKDQFHG6HULDO&RPPXQLFDWLRQV&RQWUROOHU YLLL Table 35. Table 36. Table 37. Table 38. Table 39. Table 40. Table 41. Table 42. Table 43. Table 44. Table 45. Table 46. 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