eZ80L92 MCU
Product Specification
1
Architectural Overview
Zilog’s eZ80L92 MCU is a high-speed single-cycle instruction-fetch microcontroller with
a maximum clock speed of 50 MHz. The eZ80L92 MCU is a member of eZ80Acclaim!®
family of Flash microcontrollers. It operates in Z80® compatible addressing mode (64
KB) or full 24-bit addressing mode (16 MB). The rich peripheral set of the eZ80L92 MCU
makes it suitable for various applications including industrial control, embedded
communication, and point-of-sale terminals.
Features
The features of eZ80L92 MCU include:
•
•
Single-cycle instruction fetch, high-performance, pipelined eZ80® CPU core1
Low power features including SLEEP mode, HALT mode, and selective peripheral
power-down control
•
Two Universal Asynchronous Receiver/Transmitter (UARTs) with independent baud
rate generators
•
•
•
•
•
Serial Peripheral Interface (SPI) with independent clock rate generator
Inter-Integrated Circuit (I2C) with independent clock rate generator
Infrared Data Association (IrDA)-compliant infrared encoder/decoder
New DMA-like eZ80 instructions for efficient block data transfer
Glueless external peripheral interface with 4 Chip Selects, individual Wait State
generators, and an external WAIT input pin—supports Intel-style and Motorola-style
buses Fixed-priority vectored interrupts (both internal and external) and interrupt
controller
•
Real-time clock with an on-chip 32 kHz oscillator, selectable 50/60 Hz input, and
separate VDD pin for battery backup
•
•
•
•
•
•
Six 16-bit Counter/Timers with prescalers and direct input/output drive
Watchdog Timer (WDT)
24 bits of General-Purpose Input/Output (GPIO)
JTAG and ZDI debug interfaces
100-pin LQFP package
3.0 V to 3.6 V supply voltage with 5 V tolerant inputs
1. For simplicity, the term eZ80 CPU is referred as CPU for the rest of this document.
PS013014-0107
Architectural Overview
ZILOG [ ZILOG, INC. ]
