eZ80L92 MCU
Product Specification
vii
List of Figures
Figure 1. eZ80L92 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 2. 100-Pin LQFP Configuration of the eZ80L92 . . . . . . . . . . . . . . . . . . 4
Figure 3. GPIO Port Pin Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 4. Memory Chip Select Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 5. Wait Input Sampling Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . 51
Figure 6. Wait State Operation Example (Read Operation) . . . . . . . . . . . . . . 52
Figure 7. Z80 Bus Mode Read Timing Example . . . . . . . . . . . . . . . . . . . . . . . 54
Figure 8. Z80 Bus Mode Write Timing Example . . . . . . . . . . . . . . . . . . . . . . . 55
Figure 9. IntelTM Bus Mode Signal and Pin Mapping . . . . . . . . . . . . . . . . . . . 56
Figure 10. Intel™ Bus Mode Read Timing Example (Separate Address and
Data Buses) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Figure 11. Intel™ Bus Mode Write Timing Example (Separate Address and
Data Buses) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Figure 12. Intel™ Bus Mode Read Timing Example (Multiplexed Address
and Data Bus) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Figure 13. IntelTM Bus Mode Write Timing Example (Multiplexed Address
and Data Bus) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Figure 14. Motorola Bus Mode Signal and Pin Mapping . . . . . . . . . . . . . . . . . 63
Figure 15. Motorola Bus Mode Read Timing Example . . . . . . . . . . . . . . . . . . . 65
Figure 16. Motorola Bus Mode Write Timing Example . . . . . . . . . . . . . . . . . . . 66
Figure 17. Watch-Dog Timer Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Figure 18. Programmable Reload Timer Block Diagram . . . . . . . . . . . . . . . . . 75
Figure 19. PRT Single Pass Mode Operation Example . . . . . . . . . . . . . . . . . . 77
Figure 20. PRT Continuous Mode Operation Example . . . . . . . . . . . . . . . . . . 78
Figure 21. PRT Timer Output Operation Example . . . . . . . . . . . . . . . . . . . . . . 80
Figure 22. Real-Time Clock and 32KHz Oscillator Block Diagram . . . . . . . . . . 86
Figure 23. UART Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Figure 24. Infrared System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Figure 25. Infrared Data Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Figure 26. Infrared Data Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Figure 27. SPI Master Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Figure 28. SPI Slave Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Figure 29. SPI Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Figure 30. I2C Clock and Data Relationship . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Figure 31. START and STOP Conditions In I2C Protocol . . . . . . . . . . . . . . . . 136
Figure 32. I2C Frame Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
PS013015-0316
<Draft>
ZILOG [ ZILOG, INC. ]
