參數(shù)資料
型號: NT6861U
廠商: Electronic Theatre Controls, Inc.
英文描述: 8-Bit Microcontroller for Monitor
中文描述: 8位微控制器的監(jiān)控
文件頁數(shù): 25/44頁
文件大?。?/td> 455K
代理商: NT6861U
NT6861
25
VCNTOV = '1'
HCNTH = '00'
No
Yes
Yes
No
Read VCNT|HCNT
Counter Register
NORMAL Mode
Seperate Sync.
Freq.
Calculating
Set S/C = '0'
Clear VCNTOV & HCNTOV
Open INTV & clear INTV flag
VCNTOV = '1'
No
Yes
Yes
No
Return
STAND-BY Mode
Off Mode
Worng Mode
Yes
No
Suspend Mode
Return
Freq.
Calculating
1. Extract HCNTL/H 12 bit data
2. 12 bit data * Vsync. freq.
= Hsync. freq.
3. Its reciprocal
is Hsync. time duration.
1. Extract VCNTL/H 12 bit data
2. HSEL = '1'
12 bit data X 8
μ
s
= Vsync. time duration
3. Its reciprocal
is Vsync. freq.
4. HSEL = '0'
12 bit data X 8.192ms
= Vsync. freq.
Set S/C = '1' & HSEL = '0'
Clear VCNTOV & HCNTOV Delay 10ms
NORMAL Mode
Composite Sync.
HCNTH ='00'
HCNTH = '00'
Sync. Mode
Processing
INTV
No
Yes
Delay 60ms
Delay 31 ms
Read VCNT|HCNT
Counter Register
System Default:
S/C = '1' & HSEL = '1'
Open INTV & clear INTV flag
Figure 19. H & V Sync. Software Control Flowchart (for reference only)
相關PDF資料
PDF描述
NT6861 8-Bit Microcontroller for Monitor
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NT6862U 8-Bit Microcontroller for Monitor
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