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參數(shù)資料
| 型號： | UPD6466GS |
| 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(jī)，錄像機(jī)所載 |
| 文件頁數(shù)： | 19/70頁 |
| 文件大小： | 494K |
| 代理商： | UPD6466GS |
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19
μ
PD6466
2. COMMAND
2.1 Command Format
Control commands can be serially input in 8-bit units. The word length of a command is variable.
Three types of commands are available: 1-byte commands that consist of 8 bits including the instruction and data,
2-byte commands, and 2-byte successive commands that can be input in an abbreviated form.
Inputting command data with the MSB first or LSB first can be selected by using the CMDCT pin.
When the CMDCT pin is high, the data is input with the MSB first; when it is low, the data is input with the LSB
first.
2.2 Command List
(1) MSB first
1-byte commands
(MSB)
Function
D7
D6
D5
D4
D3
D2
D1
D0
Video RAM batch clear
0
0
0
0
0
0
0
0
Display control
0
0
0
1
DO
LC
BL1
BL0
Background color/frame color control
0
0
1
0
R
G
B
BFC
3-channel independent display ON/OFF
0
1
1
1
0
DOA
DOB
DOC
Character color reverse ON/OFF
0
1
1
1
1
0
0
BCRE
Blue back ON/OFF
0
1
1
1
1
CLR
0
BB
Character address bank select
0
1
1
1
1
1
1
BC
Output switch control
0
1
0
S3A
S3B
SW4
SW2
SW1
2-byte commands
(MSB)
Function
D15 D14 D13 D12 D11 D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Character display position control
1
0
0
0
0
0
V4
V3
V2
V1
V0
H4
H3
H2
H1
H0
Write address control
1
0
0
0
1
0
0
AR3 AR2 AR1 AR0 AC4 AC3 AC2 AC1 AC0
Output pin control
1
0
0
1
1
1
0
0
OD1 OD0
0
0
AR3 AR2 AR1 AR0
Character size control
1
0
0
1
1
0
SV1 SV0 SH1 SH0
0
0
AR3 AR2 AR1 AR0
3-channel background control
1
0
1
1
0
0
1
BA1 BA0 BFA BB1 BB0 BFB BC1 BC0 BFC
Initial status setting
1
0
1
1
0
1
0
0
0
BR
RS OP1 OP0 COC VST OSC
Test mode
Note
1
0
1
1
0
0
0
0
T7
T6
T5
T4
T3
T2
T1
T0
Note
Must not be used.
2-byte successive command
(MSB)
Function
D15 D14 D13 D12 D11 D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Display character control
1
1
RV
R
G
B
BL
V
C2
C7
C6
C5
C4
C3
C2
C1
C0
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