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參數(shù)資料
| 型號： | CZ80CPU |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 8-Bit Microprocessor Megafunction |
| 中文描述： | 8位微處理器宏功能 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 73K |
| 代理商： | CZ80CPU |
CZ80CPU
8-Bit Microprocessor
Megafunction
General Description
Features
Implements a fast, fully-functional, single-chip, 8-
bit microprocessor with the same instruction set
as the Z80.
Programming features contain 208 bits of
read/write memory that are accessible to the
programmer. The internal registers include an
accumulator and six 8-bit registers that can be
paired as three 16-bit registers. In addition to
general registers, a 16-bit stack-pointer, 16-bit
program-counter, and two 16-bit index registers
are provided.
The core has a 16-bit address bus capable of
directly accessing 64kB of memory space. It has
252 root instructions with the reserved 4 bytes as
prefixes, and accesses an additional 308
instructions.
Control Unit
The microcode-free design was developed for
reuse in ASIC and FPGA implementations. It is
strictly synchronous, with no internal tri-states
and a synchronous reset.
o
8-bit Instruction decoder
Arithmetic-Logic Unit
o
8-bit arithmetic and logical
operations
Symbol
o
16-bit arithmetic operations
o
Boolean manipulations
Register File Unit
o
Duplicate set of both general
purpose and flag registers
o
Two 16-bit index registers
Interrupt Controller
o
Three modes of maskable interrupts
o
Non maskable interrupt
External Memory interface
o
Can address up to 64 KB of program
memory
o
Can address up to 64 KB of data
memory
o
Can address up to 64 KB of
input/output devices
On-core dynamic memory refresh counter
CAST, Inc.
April 2004
Page 1
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