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): 35/70頁
文件大小: 494K
代理商: UPD6466GT
35
μ
PD6466
Horizontal display start position control
The horizontal display start position can be set in 32 steps in units of 3 dots (3/f
OSC
(MHz)) 22 clocks (22/
f
OSC
(MHz)) after the rising of the horizontal sync signal input to the Hsync pin (f
OSC
: LC oscillation frequency
or external input clock frequency).
Vertical display start position control
The vertical display start position can be set in 32 steps in units of 3 or 9 rows (refer to
3.14 Initial Status
Setting Command
) from the rising of the vertical sync signal input to the Vsync pin.
B
A
Vertical sync signal (Vsync)
Horizontal sync signal (Hsync)
Display area: 12 rows, 24 columns
A : 3H
×
(2
4
V4 + 2
3
V3 + 2
2
V2 + 2
1
V1 + 2
0
V0) + 2H
B : fosc3
×
(2
4
H4 + 2
3
H3 + 2
2
H2 + 2
1
H1 + 2
0
H0) +
f
OSC
: LC oscillation frequency or external input clock frequency, H: row
fosc(MHz)
22
9H if 9H unit is selected by the initial status setting command.
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