This document is the user manual for the Z8 family of microcontrollers from ZiLOG, describing the features and characteristics of the Z8 microcontrollers.
This manual covers the Z8 Family of microcontrollers, presenting an overview of the product, key features, address space, and the full register set. It includes sections on standard and expanded registers, program and external memory, and clock and oscillator operation.
Additional chapters describe I/O port configurations, interrupt handling, UART and SPI interfaces, instruction set details, and customer feedback procedures. The document serves both developers and engineers needing in‑depth reference material for designing with Z8 devices.
| Watch‑Dog Timer (WDT) | Enabled during halt mode via WDh instruction |
|---|---|
| Supported MCU models | Z86C04, Z86C08, Z86E04, Z86E07, Z86E08 |
| Clock Divide Ratio | SCLK divided by TCLK by 16 |
| External Clock Division | Divide by 2 |
| Power‑On‑Reset (POR) | Reset pin internal operation |
The format is valid only for the Z86C04, Z86C08, Z86E04, Z86E07, and Z86E08 MCUs.