Z86E3016PSG Datasheet, PDF (12/348 Pages) Zilog, Inc. – Z86E3016PSG

Z8 Family of Microcontrollers
User Manual
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Figure 23. Example of External Power-On Reset Circuit . . . . . . . . . . 50
Figure 24. Example of Z8 Reset with RESET Pin, WDT, SMR,
and POR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 25. Example of Z8 Reset with WDT, SMR, and POR . . . . . . 54
Figure 26. Example of Z8 Watch–Dog Timer Mode Register . . . . . . 56
Figure 27. Example of Z8 with Simple SMR and POR . . . . . . . . . . . 59
Figure 28. I/O Ports and Mode Registers . . . . . . . . . . . . . . . . . . . . . . 62
Figure 29. Ports 0, 1, 2 Generic Block Diagram . . . . . . . . . . . . . . . . 64
Figure 30. Port 0 Configuration with Open-Drain Capability,
Autolatch, and Schmitt-Trigger . . . . . . . . . . . . . . . . . . . . . 66
Figure 31. Port 0 Configuration with TTL Level Shifter . . . . . . . . . . 67
Figure 32. Port 0 I/O Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Figure 33. Port 0 Handshake Operation . . . . . . . . . . . . . . . . . . . . . . . 69
Figure 34. Port 1 Configuration with Open-Drain Capability,
Autolatch, and Schmitt-Trigger . . . . . . . . . . . . . . . . . . . . . 70
Figure 35. Port 1 Configuration with TTL Level Shifter . . . . . . . . . . 71
Figure 36. Port 1 I/O Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Figure 37. Handshake Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Figure 38. Port 2 I/O Mode Configuration . . . . . . . . . . . . . . . . . . . . . 74
Figure 39. Port 2 Configuration with Open-Drain Capability,
Autolatch, and Schmitt-Trigger . . . . . . . . . . . . . . . . . . . . . 75
Figure 40. Port 2 Configuration with TTL Level Shifter . . . . . . . . . . 76
Figure 41. Port 2 Configuration with Open-Drain Capability,
Autolatch, Schmitt-Trigger and SPI . . . . . . . . . . . . . . . . . 77
Figure 42. Port 2 Handshake Configuration . . . . . . . . . . . . . . . . . . . . 79
List of Figures
UM001602-0904