參數(shù)資料
型號： UPD6466GT
廠商： NEC Corp.
英文描述： ON-SCREEN CHARACTER DISPLAY CMOS IC FOR 512-CHARACTER, 12-ROW, 24-COLUMN, CAMERA-CONTAINED VCR
中文描述： 屏幕字符顯示的CMOS集成電路512-CHARACTER，12列，24列，攝像機，錄像機所載
文件頁數(shù)： 51/70頁
文件大?。?/td> 494K
代理商： UPD6466GT
51
μ
PD6466
4.4 Successive Input of Command
Transfer each of the 1-byte, 2-byte, and 2-byte successive commands from a microcontroller to the
μ
PD6466 as
follows.
To transfer a 1-byte or 2-byte command, or a 2-byte successive command with blinking data changed after a 2-
byte successive command has been transferred, either make CS high once, or transfer FFH (2-byte successive
command end code) at the end of the 2-byte successive command. In the latter case, it is not necessary to make
CS high.
4.4.1 When 2-byte successive command end code is not used
Example
1-byte command
→
2-byte successive command
→
1-byte command
DATA
CLK
CS
Make CS low once and then back high again.
2nd byte
D7-D0
(D0-D7)
MSB first (LSB first)
2nd byte
D7-D0
(D8-D15)
00H-FEH
(normal character)
2-byte successive
command
1st byte
D15-D8
(D0-D7)
1-byte command
(D0-D7)
(D8-D15)
00H-FEH
(normal character)
D7-D0
D7-D0
1-byte command
4.4.2 When 2-byte successive command end code is used
Example
1-byte command
→
2-byte successive command
→
1-byte command
DATA
CLK
CS
1-byte command
2nd byte
D7-D0
(D0-D7)
MSB first (LSB first)
2nd byte
D7-D0
(D8-D15)
00H to FFH
(normal character)
2-byte successive
command
1st byte
D15-D8
(D0-D7)
1-byte command
(D0-D7)
(D8-D15)
FFH (2-byte successive
command end code)
D7-D0
D7-D0
It is not necessary to make CS low and then back high again.
Remark
By using the 2-byte successive command end code, the CS pin may remain low. However, it is
recommended to make CS pin high to improve the noise immunity.
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UPD6467 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, 28-COLUMN, CAMERA-CONTAINED VCR
UPD6467GR 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, 28-COLUMN, CAMERA-CONTAINED VCR
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