參數(shù)資料
型號: UPD6465
廠商: NEC Corp.
英文描述: ON-SCREEN CHARACTER DISPLAY CMOS LSI FOR 12-LINE, 24-COLUMN DECK-TYPE VCR
中文描述: 屏幕字符顯示的CMOS大規(guī)模集成電路的12線,24柱甲板型錄像機(jī)
文件頁數(shù): 19/52頁
文件大小: 570K
代理商: UPD6465
μ
PD6464A,6465
19
2.9 Write Address Control Command
This command specifies a write address when a character is written to the display area (video RAM) of 12
lines by 24 columns. Because this command is a 2-byte command, it must be input in 16-bit units even when
input successively.
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
1
0
0
0
1
0
0
AR3
AR2
AR1
AR0
AC4
AC3
AC2
AC1
AC0
Write column address control bits
AC4
AC3
AC2
AC1
0
0
0
0
0
0
0
0
Function
Sets column 0
Sets column 1
Setting prohibited
AC0
0
1
1
0
1
1
Sets column 23
1
Write line address control bits
AR3
AR2
AR1
0
0
0
0
0
0
Function
Sets line 0
Sets line 1
Setting prohibited
AR0
0
1
1
0
1
Sets line 11
1
Write column address control bits
One line consists of 24 columns in the horizontal direction. These bits specify the column to be written.
Write line address control bits
One column consists of 12 lines in the vertical direction. These bits specify the line to be written.
Video RAM configuration
The video RAM consists of 12 lines by 24 columns as shown below.
The number of display characters therefore is 12 lines by 24 columns (when all the lines are set to the
minimum size).
AC4, AC3, AC2, AC1, AC0
00000
00001
00010
10110
10111
AR3, AR2, AR1, AR0
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPD6465CS 制造商:NEC 制造商全稱:NEC 功能描述:ON-SCREEN CHARACTER DISPLAY CMOS LSI FOR 12-LINE, 24-COLUMN DECK-TYPE VCR
UPD6465GT 制造商:NEC 制造商全稱:NEC 功能描述:ON-SCREEN CHARACTER DISPLAY CMOS LSI FOR 12-LINE, 24-COLUMN DECK-TYPE VCR
UPD6465GT-101(A) 制造商:Renesas Electronics Corporation 功能描述:
UPD6465GT101-A 制造商:Renesas Electronics Corporation 功能描述:
UPD6466 制造商:NEC 制造商全稱:NEC 功能描述:ON-SCREEN CHARACTER DISPLAY CMOS IC FOR 512-CHARACTER, 12-ROW, 24-COLUMN, CAMERA-CONTAINED VCR