CSB480E View Datasheet(PDF) - Hynix Semiconductor

Part Name

Description

MFG CO.

CSB480E

4-BIT SINGLE CHIP MICROCOMPUTERS

Hynix Semiconductor 

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Chapter 3. Instruction

Detailed Description

(1) LAY

Naming :

Status :

Format :

Function :

<Comment>

Load Accumulator from Y-Register

Set

I

A ¡ç Y

Data of four bits in the Y-register is unconditionally transferred

to the accumulator. Data in the Y-register is left unchanged.

(2) LYA

Naming :

Status :

Format :

Function :

<Comment>

Load Y-register from Accumulator

Set

I

Y ¡ç A

Load Y-register from Accumulator

(3) LAZ

Naming :

Status :

Format :

Function :

<Comment>

Clear Accumulator

Set

I

A ¡ç 0

Data in the accumulator is unconditionally reset to zero.

(4) LMA

Naming :

Status :

Format :

Function :

<Comment>

Load Memory from Accumulator

Set

I

M(X,Y) ¡ç A

Data of four bits from the accumulator is stored in the RAM

location addressed by the X-register and Y-register. Such data

is left unchanged.

(5) LMAIY

Naming :

Status :

Format :

Function :

<Comment>

Load Memory from Accumulator and Increment Y-Register

Set

I

M(X,Y) ¡ç A, Y ¡ç Y+1

Data of four bits from the accumulator is stored in the RAM

location addressed by the X-register and Y-register. Such data

is left unchanged.

3- 6

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