Z86E3016PSG Datasheet, PDF (20/348 Pages) Zilog, Inc. – Z86E3016PSG

Z8 Family of Microcontrollers
User Manual
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conversion, and short circuit detection. Each analog input provides a
unique maskable interrupt input.
Timer/Counter. The Timer/Counter (T/C) consists of a programmable 6-
bit prescaler and 8-bit downcounter, with maskable interrupt upon end-of-
count. Software controls T/C load/start/stop, countdown read (at any time
on the fly), and maskable end-of-count interrupt. Special functions avail-
able include T_IN (external counter input, external gate input, or external
trigger input) and T_OUT (external access to timer output or the internal
system clock.) These special functions allow accurate hardware input
pulse measurement and output waveform generation.
Interrupts. There are six vectored interrupt sources with software-pro-
grammable enable and priority for each of the six sources.
Watch–Dog Timer. An internal Watch–Dog Timer (WDT) circuit is
included as a fail-safe mechanism so that if software strays outside the
bounds of normal operation, the WDT will time-out and reset the MCU.
To maximize circuit robustness and reliability, the default WDT clock
source is an internal RC circuit (isolated from the device clock source).
Auto Reset/Low-Voltage Protection. All family devices have internal
Power-On Reset. ROM devices add low-voltage protection. Low-voltage
protection ensures the MCU is in a known state at all times (in active
RUN mode or RESET) without external hardware (or a device reset pin).
Low-EMI Operation. Mode is programmable via software or as a mask
option. This new option provides for reduced radiated emission via clock
and output drive circuit changes.
Low-Power. CMOS with two standby modes; STOP and HALT.
Full Z8 Instruction Set. Forty-eight basic instructions, supported by six
addressing modes with the ability to operate on bits, nibbles, bytes, and
words.
Z8 CPU Product Overview
UM001602-0904