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參數(shù)資料
| 型號(hào)： | Z380 |
| 廠商： | ZiLOG, Inc. |
| 英文描述： | MICROPROCESSOR(高性能微處理器) |
| 中文描述： | 微處理器（高性能微處理器） |
| 文件頁(yè)數(shù)： | 1/115頁(yè) |
| 文件大小： | 548K |
| 代理商： | Z380 |
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M
ICROPROCESSOR
Z
ILOG
FEATURES
Z380
M
ICROPROCESSOR
I
Static CMOS Design with Low-Power Standby Mode
Option
I
32-Bit Internal Data Paths and ALU
I
Operating Frequency
- DC-to-18 MHz at 5V
- DC-to-10 MHz at 3.3V
I
Enhanced Instruction Set that Maintains Object-Code
Compatibility with Z80
and Z180
Microprocessors
I
16-Bit (64K) or 32-Bit (4G) Linear Address Space
I
16-Bit Data Bus with Dynamic Sizing
P
RODUCT
S
PECIFICATION
I
Two-Clock Cycle Instruction Execution Minimum
I
Four Banks of On-Chip Register Files
I
Enhanced Interrupt Capabilities, Including
16-Bit Vector
I
Undefined Opcode Trap for Z380
Instruction Set
I
On-Chip I/O Functions:
- Six-Memory Chip Selects with Programmable Waits
- Programmable I/O Waits
- DRAM Refresh Controller
I
100-Pin QFP Package
GENERAL DESCRIPTION
The Z380
Microprocessor is an integrated high-
performance microprocessor with fast and efficient through-
put and increased memory addressing capabilities. The
Z380
offers a continuing growth path for present Z80-or
Z180-based designs, while maintaining Z80
CPU and
Z180
MPU object-code compatibility. The Z380
MPU
enhancements include an improved 280 CPU, expanded
4-Gbyte space and flexible bus interface timing.
An enhanced version of the Z80 CPU is key to the Z380
MPU. The basic addressing modes of the Z80 micropro-
cessor have been augmented as follows: Stack Pointer
Relative loads and stores, 16-bit and 24-bit indexed off-
sets, and more flexible Indirect Register addressing, with
all of the addressing modes allowing access to the entire
32-bit address space. Additions made to the instruction
set, include a full complement of 16-bit arithmetic and
logical operations, 16-bit I/O operations, multiply and
divide, plus a complete set of register-to-register loads
and exchanges.
The expanded basic register file of the Z80 MPU micropro-
cessor includes alternate register versions of the IX and IY
registers. There are four sets of this basic Z80 micropro-
cessor register file present in the Z380 MPU, along with the
necessary resources to manage switching between the
different register sets. All of the register-pairs and index
registers in the basic Z80 microprocessor register file are
expanded to 32 bits.
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