Zilog Z80180 - Manual (Page 16)

Z8018x
Family MPU User Manual
1
UM005003-0703
Z80180, Z8S180, Z8L180 MPU Operation
FEATURES
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Operating Frequency to 33 MHz
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On-Chip MMU Supports Extended Address Space
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Two DMA Channels
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On-Chip Wait State Generators
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Two Universal Asynchronous Receiver/Transmitter (UART) Channels
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Two 16-Bit Timer Channels
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On-Chip Interrupt Controller
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On-Chip Clock Oscillator/Generator
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Clocked Serial I/O Port
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Code Compatible with ZiLOG Z80 CPU
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Extended Instructions
GENERAL DESCRIPTION
Based on a microcoded execution unit and an advanced CMOS
manufacturing technology, the Z80180, Z8S180, Z8L180 (Z8X180) is an
8-bit MPU which provides the benefits of reduced system costs and low
power operation while offering higher performance and maintaining
compatibility with a large base of industry standard software written
around the ZiLOG Z8X CPU.
Higher performance is obtained by virtue of higher operating frequencies,
reduced instruction execution times, an enhanced instruction set, and an