Datasheet > UPD77018GC

UPD77018GC

更新时间： 2024-11-24 22:09:19

品牌	Logo	应用领域
日电电子 - NEC		数字信号处理器
页数	文件大小	规格书
60页	418K
描述
16 bits, Fixed-point Digital Signal Processor

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中文翻译

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数据手册

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UPD77018GC 数据手册

DATA SHEET

MOS INTEGRATED CIRCUIT

µPD77015,77017,77018

16 bits, Fixed-point Digital Signal Processor

µPD77015, 77017, 77018 are 16 bits fixed-point DSPs (Digital Signal Processors) developed for digital signal

processing with its demand for high speed and precision.

FEATURES

• FUNCTIONS

• Instruction cycle: 30 ns (MIN.)

Operation clock: 33 MHz

External clock: 33, 16.5, 8.25, 4.125 MHz

Crystal: 33 MHz

• On-chip PLL to provide higher operation clock than the external clock

• Dual load/store

• Hardware loop function

• Conditional execution

• Executes product-sum operation in one instruction cycle

• PROGRAMMING

• 16 bits × 16 bits + 40 bits → 40 bits multiply accumulator

• 8 general registers (40 bits each)

• 8 ROM/RAM data pointer: each data memory area has 4 registers

• 10 source interrupts (external: 4, internal: 6)

• 3 operand instructions (example: R0 = R0 +R1L R2L)

• Nonpipeline on execution stage

• MEMORY AREAS

• Instruction memory area : 64K words × 32 bits

• Data memory areas : 64K words × 16 bits × 2 (X memory, Y memory)

• CLOCK GENERATOR

• Mask option for CLKOUT pin:

Fixed to the low level.

Does not output the internal system clock.

• Selectable source clock: external clock input and crystal resonator

[External clock]

On-chip PLL to provide higher operation clock (33 MHz MAX.) than the external clock.

Variable multiple rates (1, 2, 4, 8) by mask option.

[Crystal resonator]

Oscillation frequency corresponds directly to the system clock frequency (Sure to specify the mask option

frequency multiple as "1").

In this document, all descriptions of the µPD77017 also apply to the µPD77015 and µPD77018, unless

otherwise specified.

The information in this document is subject to change without notice.

Document No. U10902EJ3V0DS00 (3rd edition)

Date Published June 1997 N

Printed in Japan

The mark

shows major revised points.

1993, 1994

12 3 4 5 6 7...60

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