Z86D990 Datasheet, PDF (6/102 Pages) Zilog, Inc. – Low-Voltage Micro controllers with ADC

Z86D990/Z86D991 OTP and Z86L99X ROM
Low-Voltage Microcontrollers with ADC
vi
List of Tables
Table 1. Z86L99/Z86D99 Feature Comparison . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 3. Interrupt Types, Sources, and Vectors . . . . . . . . . . . . . . . . . . . . . . 15
Table 4. Interrupt Edge Select for External Interrupts . . . . . . . . . . . . . . . . . . 17
Table 5. Control and Status Register Reset Conditions . . . . . . . . . . . . . . . . 20
Table 6. Clock Status in Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 7. Special Port Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 8. Active Glitch/Filter Specifications (Preliminary) . . . . . . . . . . . . . . . . 32
Table 9. Current Sink Pad P43 Specifications (Preliminary) . . . . . . . . . . . . . 33
Table 10. I/O Port Registers (Group 0, Bank 0, Registers 0–F) . . . . . . . . . . . 52
Table 11. Timer Control Registers (Group 0, Bank D, Registers 0–F) . . . . . . 53
Table 12. Control and Status Registers (Group F, Bank 0,
Registers 0–F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Table 13. SMR and Port Mode Registers (Group 0, Bank F,
Registers 0–F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Table 14. Register Description Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Table 15. FLAGS Register [Group/Bank F0h, Register C (R252)] . . . . . . . . . 57
Table 16. RP Register [Group/Bank F0h, Register D (R253)] . . . . . . . . . . . . . 58
Table 17. SP Register [Group/Bank F0h, Register F (R255)] . . . . . . . . . . . . . 59
Table 18. LB Register (Group/Bank 0Dh, Register C) . . . . . . . . . . . . . . . . . . . 60
Table 19. ADCCTRL Register (Group/Bank 0Fh, Register 8) . . . . . . . . . . . . . 61
Table 20. ADCDATA Register (Group/Bank 00h, Register 7) . . . . . . . . . . . . . 62
Table 21. IMR (Group/Bank 0Fh, Register B) . . . . . . . . . . . . . . . . . . . . . . . . . 63
Table 22. IPR (Group/Bank 0Fh, Register 9) . . . . . . . . . . . . . . . . . . . . . . . . . 64
Table 23. IRQ (Group/Bank 0Fh, Register A) . . . . . . . . . . . . . . . . . . . . . . . . . 65
Table 24. P456CON Register (Group/Bank 0Fh, Register 0) . . . . . . . . . . . . . 67
Table 25. P3M Register [Group/Bank F0h, Register 7 (R247)] . . . . . . . . . . . . 68
Table 26. P2 Register [Group/Bank 00h, Register 2 (R2)] . . . . . . . . . . . . . . . 68
Table 27. P2M Register [Group/Bank F0h, Register 6 (R246)] . . . . . . . . . . . . 68
Table 28. P4 Register [Group/Bank 00h, Register 4 (R4)] . . . . . . . . . . . . . . . 69
Table 29. P4M Register (Group/Bank 0Fh, Register 2) . . . . . . . . . . . . . . . . . . 69
Table 30. P5 Register [Group/Bank 00h, Register 5 (R5)] . . . . . . . . . . . . . . . 70
Table 31. P5M Register (Group/Bank 0Fh, Register 4) . . . . . . . . . . . . . . . . . . 70
Table 32. P6 Register [Group/Bank 00h, Register 6 (R6)] . . . . . . . . . . . . . . . 71
PS003807-1002
PRELIMINARY