EZ80F91MCU ZILOG [Zilog, Inc.], EZ80F91MCU Datasheet - Page 13

• Manufacturer Part Number: EZ80F91MCU
• Description: eZ80Acclaim-TM Flash Microcontrollers
• Manufacturer: ZILOG [Zilog, Inc.]

List of Figures
PS019209-0504
Figure 1. GPIO Port Pin Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Figure 2. Example: Memory Chip Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Figure 3. Wait Input Sampling Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Figure 4. Example: Z80 Bus Mode Read Timing . . . . . . . . . . . . . . . . . . . . . . . 80
Figure 5. Example: Z80 Bus Mode Write Timing . . . . . . . . . . . . . . . . . . . . . . . . 81
Figure 6. Intel Bus Mode Signal and Pin Mapping . . . . . . . . . . . . . . . . . . . . . . 82
Figure 7. Motorola Bus Mode Signal and Pin Mapping . . . . . . . . . . . . . . . . . . . 89
Figure 8. Example: eZ80F91 On-Chip RAM Memory Addressing . . . . . . . . . 101
Figure 9. Programmable Reload Timer Block Diagram . . . . . . . . . . . . . . . . . . 127
Figure 10. PWM AND/OR Gating Functional Diagram . . . . . . . . . . . . . . . . . . 155
Figure 11. UART Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Figure 12. SPI Master Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Figure 13. SPI Slave Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Figure 14. I
Figure 15. START and STOP Conditions In I
Figure 16. I
Figure 17. I
Figure 18. Clock Synchronization In I
Figure 19. internal Ethernet Shared Memory . . . . . . . . . . . . . . . . . . . . . . . . . 245
Figure 20. Descriptor Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Figure 21. Descriptor Table Entries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Figure 22. Typical ZDI Debug Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
Figure 23. Schematic For Building a Target Board ZPAK Connector . . . . . . . 287
Figure 24. ZDI Write Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Figure 25. ZDI Read Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Figure 26. Normal PLL Programming Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Figure 27. Recommended Crystal Oscillator Configuration—50 MHz
Figure 28. Recommended Crystal Oscillator Configuration—32 KHz
Figure 29. External I/O Write Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353
Figure 30. Wait State Timing for Read Operations . . . . . . . . . . . . . . . . . . . . . 355
Figure 31. Wait State Timing for Write Operations . . . . . . . . . . . . . . . . . . . . . 356
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
2
2
2
C Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
C Clock and Data Relationship . . . . . . . . . . . . . . . . . . . . . . . . . . 220
C Frame Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
P R E L I M I N A R Y
2
C Protocol . . . . . . . . . . . . . . . . . . . . . . 223
2
C Protocol . . . . . . . . . . . . . . . . 220
Product Specification
eZ80F91 MCU
List of Figures
xiii