ST7920 datasheet(27/47 Pages) ETC1

27 / 47 page

ST7920

C2.0c

27/47

2001/10/18

8051 串列資料傳輸示範程式

串列資料傳輸示範程式

;--------------------------------------------------------------

;

Write data from A into INSTRUCTION Register

;--------------------------------------------------------------

WRINS:

SETB

SID

; SID = 1

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

CLR

SID

; SID = 0

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

MOVBIT

SID, A.7

; SID = A.7

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

MOVBIT

SID, A.6

; SID = A.6

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

MOVBIT

SID, A.5

; SID = A.5

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

MOVBIT

SID, A.4

; SID = A.4

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

CLR

SID

; SID = 0

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

MOVBIT

SID, A.3

; SID = A.3

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

MOVBIT

SID, A.2

; SID = A.2

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

MOVBIT

SID, A.1

; SID = A.1

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

MOVBIT

SID, A.0

; SID = A.0

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

CLR

SID

; SID = 0

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

CLR

CALL

DLY8

RET

;-------------------------------------------------

;

Write data from A into DATA Register

;-------------------------------------------------

WRDATA:

SETB

SID

; SID = 1

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

CLR

SID

; SID = 0

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SID

; SID = 1

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

CLR

SID

; SID = 0

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

MOVBIT

SID, A.7

; SID = A.7

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

MOVBIT

SID, A.6

; SID = A.6

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

MOVBIT

SID, A.5

; SID = A.5

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

MOVBIT

SID, A.4

; SID = A.4

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

CLR

SID

; SID = 0

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

MOVBIT

SID, A.3

; SID = A.3

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

MOVBIT

SID, A.2

; SID = A.2

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

MOVBIT

SID, A.1

; SID = A.1

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

MOVBIT

SID, A.0

; SID = A.0

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

CLR

SID

; SID = 0

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

SETB

SCLK

; READ DATA FROM SID

CLR

SCLK

CLR

CALL

DLY8

RET

ST7920 Datasheet(PDF) 27 Page - List of Unclassifed Manufacturers

ST7920 Datasheet(HTML) 27 Page - List of Unclassifed Manufacturers

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