參數(shù)資料
型號(hào): NT68F62
廠商: Electronic Theatre Controls, Inc.
英文描述: 8-Bit Microcontroller for Monitor (32K Flash MTP Type)
中文描述: 8位微控制器的監(jiān)視器(32K閃存中期型)
文件頁數(shù): 28/57頁
文件大?。?/td> 521K
代理商: NT68F62
NT68F62
28
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.
or 12 bits data/time interval
(16.382 or 32.968 ms)
3. Its reciprocal
is Hsync. time duration.
1. Extract VCNTL/H 14 bit data
2. 14 bits data * 8 us
= Vsync. time duration
3. Its reciprocal
is Vsync. freq.
Set S/C = '1' & ENSEL = ''0'
& SELECT TIME INTRVAL
(16.384 or 32.968ms)
Clear VCNTOV & HCNTOV
Delay 2 * TIME INTELVAL
NORMAL Mode
Composite Sync.
HCNTH ='00'
HCNTH = '00'
Sync. Mode
Processing
INTV
No
Yes
Delay 132 ms
Delay 132 ms
Read VCNT|HCNT
Counter Register
System Default:
S/C = '1' & ENSEL = '1'
Open INTV & clear INTV flag
Figure 13.6. H & V Sync. Software Control Flow Chart (for reference only)
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