參數(shù)資料
型號(hào)： UPD6465GT
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(yè)數(shù)： 23/52頁(yè)
文件大?。?/td> 570K
代理商： UPD6465GT
μ
PD6464A,6465
23
Character specification bits
These bits specify the address of a character. There are 128 types of characters available (
μ
PD6465: 256 types).
Addresses 7E
H
(
μ
PD6464A), FE
H
(
μ
PD6465), 7F
H
(
μ
PD6464A) and FFH (
μ
PD6465), however, are fixed to the
display OFF data and 2-byte contiguous command end code, respectively (no character can be set to these
addresses even when the character is changed by mask code option because these addresses are fixed
nevertheless). The character designs can be changed by mask code option.
Blink control bit
This bit specifies whether the character written to the video RAM blinks, in character units. For the details of turning
ON/OFF blinking in screen units, refer to
2.2 Display Control Command
.
3. TRANSFERRING COMMANDS
3.1 1-Byte Command
DATA
CLK
CS
3.2 2-Byte Command
DATA
CLK
CS
1st byte
2nd byte
1st byte: D15-D8
2nd byte: D7-D0
When transferring a 2-byte command, keep CS low between the first byte and second byte.
3.3 2-Byte Contiguous Command
DATA
CLK
CS
1st byte
2nd byte
2nd byte
The 2-byte contiguous command writes a character to the video RAM. To write characters in succession
without changing the blink data, first transfer the first byte and then transfer the second bytes (character
addresses) in succession.
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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
UPD6466GS 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
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