Z8523008VEG [ZILOG]
IC 2 CHANNEL(S), 2M bps, SERIAL COMM CONTROLLER, PQCC44, GREEN, PLASTIC, LCC-44, Serial IO/Communication Controller;型号: | Z8523008VEG |
厂家: | ZILOG, INC. |
描述: | IC 2 CHANNEL(S), 2M bps, SERIAL COMM CONTROLLER, PQCC44, GREEN, PLASTIC, LCC-44, Serial IO/Communication Controller 微控制器和处理器 串行IO控制器 通信控制器 外围集成电路 光电二极管 数据传输 时钟 |
文件: | 总120页 (文件大小:1383K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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Table of Contents
Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pins Common to Both the Z85230 and Z80230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin Descriptions Exclusive to the Z85230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin Descriptions Exclusive to the Z80230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Input/Output Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ESCC Data Communications Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Z80230/Z85230 Enhancements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4-Byte Transmit FIFO Buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8-Byte Receive FIFO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Write Register 7 PRIME (WR7’) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
CRC Reception in SDLC Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
TxD Forced High in SDLC with NRZI Encoding When Marking Idle . . . . . . . . . . 27
Improved Transmit Interrupt Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
DPLL Counter Tx Clock Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Read Register 0 Status Latched During Read Cycle . . . . . . . . . . . . . . . . . . . . . . . . 28
Software Interrupt Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Fast SDLC Transmit Data Interrupt Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
SDLC FIFO Frame Status Enhancement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
FIFO Enable/Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
FIFO Read Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
FIFO Write Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
SDLC Status FIFO Anti-Lock Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Initializing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Write Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Read Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Z80230 Interface Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Z80230 Write Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Z80230 Read Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Z80230 Interrupt Acknowledge Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Z85230 Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Z85230 Read Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Z85230 Write Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Z85230 Interrupt Acknowledge Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
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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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
IUS Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
IUS Problem Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
RTS Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
RTS Problem Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Automatic TxD Forced High Problem Description . . . . . . . . . . . . . . . . . . . . . . . . 105
Automatic TxD Forced High Problem Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . 106
SDLC FIFO Overflow Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
SDLC FIFO Overflow Problem Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Default RR0 Value Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Default RR0 Value Problem Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Default RR10 Value Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Default RR10 Value Problem Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
CRC Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
CRC Problem Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Z85230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Z80230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Package Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Part Number Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
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List of Figures
Figure 1. Z85230 Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Figure 2. Z80230 Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Figure 3. Z85230 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 4. Z80230 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 5. ESCC Transmit Data Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 6. ESCC Receive Data Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 7. ESCC Interrupt Priority Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 8. Various ESCC Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 9. Detecting 5- or 7-Bit Synchronous Characters . . . . . . . . . . . . . . . . . . . . . . 17
Figure 10. SDLC Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 11. Data Encoding Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 12. Write Register 7 Prime (WR7’) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 13. DMA Request on Transmit Deactivation Timing . . . . . . . . . . . . . . . . . . . . 25
Figure 14. TxIP Latching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 15. DPLL Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 16. SDLC Frame Status FIFO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 17. SDLC Byte Counting Detail 32
Figure 18. Z80230 Write Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Figure 19. Z80230 Read Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Figure 20. Z80230 Interrupt Acknowledge Cycle Timing . . . . . . . . . . . . . . . . . . . . . . 74
Figure 21. Read Cycle Timing (Z85230) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Figure 22. Write Cycle Timing (Z85230) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Figure 23. Interrupt Acknowledge Cycle Timing (Z85230) . . . . . . . . . . . . . . . . . . . . . 76
Figure 24. Standard and Open-Drain Test Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Figure 25. Z80230 Read/Write Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Figure 26. Z80230 Interrupt Acknowledge Timing Diagram . . . . . . . . . . . . . . . . . . . . 81
Figure 27. Z80230 Reset Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Figure 28. Z80230 General Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Figure 29. Z85230 Read/Write Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Figure 30. Z85230 Reset Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Figure 31. Z85230 Interrupt Acknowledge Timing Diagram . . . . . . . . . . . . . . . . . . . . 92
Figure 32. Z85230 Cycle Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Figure 33. Z85230 System Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
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Figure 34. Resetting Highest IUS from Lower Priority . . . . . . . . . . . . . . . . . . . . . . . 104
Figure 35. Automatic RTS Deactivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Figure 36. 40-Pin DIP Package Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Figure 37. 44-Pin PLCC Package Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
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List of Tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
ESCC Write Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
ESCC Read Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Data Encoding Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Z80230 Register Map (Shift Left Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Z80X30 Register Map (Shift Right Mode) . . . . . . . . . . . . . . . . . . . . . . . . . 36
Z85230 Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Write Register 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Write Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Write Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Table 10. Write Register 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Table 11. Write Register 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Table 12. Write Register 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Table 13. Write Register 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Table 14. Write Register 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 15. Write Register 7’ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Table 16. Write Register 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Table 17. Write Register 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Table 18. Write Register 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Table 19. Write Register 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Table 20. Write Register 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Table 21. Write Register 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Table 22. Write Register 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Table 23. Write Register 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Table 24. Read Register 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Table 25. Read Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Table 26. Read Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Table 27. Read Register 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Table 28. Read Register 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Table 29. Read Register 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Table 30. Read Register 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Table 31. Read Register 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Table 32. Read Register 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Table 33. Read Register 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Table 34. Read Register 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
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Table 35. Read Register 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Table 36. Read Register 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Table 37. Read Register 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Table 38. Read Register 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Table 39. Read Register 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Table 40. Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Table 41. DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Table 42. Z80230 General Timing Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Table 43. Z80230 AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Table 44. Z80230 System Timing Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Table 45. Z85230 AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Table 46. Z85230 General Timing Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Table 47. Z85230 System Timing Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
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Z 80230 16 P S C
is a Z80230, 16 MHz, PDIP, 0° to +70°C, Plastic Standard Flow
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Temperature
Package
Speed
Product Number
ZiLOG Prefix
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