SD6830 datasheet(34/34 Pages) AUK

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KSI-W002-000

STOP

Binary code

00000001

Syntax

[<label>] STOP

Operation

Stop the oscillation of the oscillator, and reset PORT F to zero

Flags

CY : Unaffected

SF : Unaffected

Words/Cycles

1/1

Description

Stops the oscillation of the oscillator.

Example

STOP

XCH @HL

Binary code

00100001

Syntax

[<label>] XCH @HL

Operation

(A) ↔ M[(H,L)]

Flags

CY : Unaffected SF : Unaffected

Words/Cycles

1/1

Description

Exchanges the accumulator with the contents of the data memory

addressed by registers H and L without going through an

intermediate location.

Example

: LDL

;

Load 3 to L

SETB

; Set H to one

XCH

@HL ; Exchanges the contents of A with M[(13)] without

going through an intermediate location

XCH @HL+

Binary code

00100000

Syntax

[<label>] XCH @HL+

Operation

(A) ↔ M[(H,L)], (L) ← (L) + 1

Flags

CY : Unaffected

SF: As a result of execution, set to one if the contents of register L are

zero, cleared otherwise

Words/Cycles

1/1

Description

Exchanges the accumulator with the contents of the data memory

addressed by registers H and L without going through an intermediate

location. As a result of execution, the contents of register L are

incremented by one.

Example

SETB

;

LDL

; Load 15 into L

CH @HL+

; Exchanges A with M[(1F)] without going through an

intermediate location. As a result of execution, the

contents of L are “0”

JMP

055

; It is skipped because L is “0”

JMP

065

; Jump to 065

SD6830

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