COP888CS datasheet(46/53 Pages) NSC

номер детали	COP888CS

подробное описание детали	8-Bit CMOS ROM Based Microcontrollers with 4k to 24k Memory, Comparators and USART

PDF	53 Pages

Scroll/Zoom	100%

производитель	NSC [National Semiconductor (TI)]

домашняя страница	http://www.national.com

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Instruction Execution Time

Most instructions are single byte (with immediate addressing

mode instructions taking two bytes).

Most single byte instructions take one cycle time to execute.

Skipped instructions require x number of cycles to be

skipped, where x equals the number of bytes in the skipped

instruction opcode.

Bytes and Cycles per Instruction

The following table shows the number of bytes and cycles for

each instruction in the format of byte/cycle.

Arithmetic and Logic Instructions

[B]

Direct

Immed.

ADD

1/1

3/4

2/2

ADC

1/1

3/4

2/2

SUBC

1/1

3/4

2/2

AND

1/1

3/4

2/2

1/1

3/4

2/2

XOR

1/1

3/4

2/2

IFEQ

1/1

3/4

2/2

IFNE

1/1

3/4

2/2

IFGT

1/1

3/4

2/2

IFBNE

1/1

DRSZ

1/3

SBIT

1/1

3/4

RBIT

1/1

3/4

IFBIT

1/1

3/4

RPND

1/1

Instructions Using A & C

CLRA

1/1

INCA

1/1

DECA

1/1

LAID

1/3

DCOR

1/1

RRCA

1/1

RLCA

1/1

SWAPA

1/1

IFC

1/1

IFNC

1/1

PUSHA

1/3

POPA

1/3

ANDSZ

2/2

Transfer of Control Instructions

JMPL

3/4

JMP

2/3

1/3

JSRL

3/5

JSR

2/5

JID

1/3

VIS

1/5

RET

1/5

RETSK

1/5

RETI

1/5

INTR

1/7

NOP

1/1

Memory Transfer Instructions

Direct

Immed.

Indirect

Auto Incr. & Decr.

[B]

[X]

[B+, B−]

[X+, X−]

X A, (Note 14)

1/1

1/3

2/3

1/2

1/3

LD A, (Note 14)

1/1

1/3

2/3

2/2

1/2

1/3

LD B, Imm

1/1

(IF B < 16)

LD B, Imm

2/2

(IF B > 15)

LD Mem, Imm

2/2

3/3

2/2

LD Reg, Imm

2/3

IFEQ MD, Imm

3/3

Note 14:

> Memory location addressed by B or X or directly.

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