參數(shù)資料
型號： TVP5031TQFP
廠商： Texas Instruments, Inc.
英文描述： NTSC/PAL VIDEO DECODER
中文描述： NTSC / PAL視頻解碼器
文件頁數(shù)： 60/85頁
文件大?。?/td> 378K
代理商： TVP5031TQFP
2–44
2.11.18 Interrupt Reset Register B
Address
1Ch
7
6
5
4
3
2
1
0
Interrupt Reset
Register B (1C)
Software Init
Reset
Reserved
TVP
Command
Ready Reset
Field Rate
Changed
Reset
Line Alternation
Changed Reset
Color Lock
Changed
Reset
H/V Lock
Changed
Reset
TV/VCR
Changed
Reset
TV/VCR Changed Reset
H/V Lock Changed Reset
Color Lock Changed Reset
Line Alternation Changed
Reset
Field Rate Changed Reset
TVP Command Ready
Reset
Software Init
*0 = No effect on interrupt register B
*0 = No effect on interrupt register B
*0 = No effect on interrupt register B
*0 = No effect on interrupt register B
1 = Reset TV/VCR changed bit
1 = Reset H/V lock changed bit
1 = Reset color lock changed bit
1 = Reset line alternation changed bit
*0 = No effect on interrupt register B
*0 = No effect on interrupt register B
1 = Reset field rate changed bit
1 = Reset TVP command ready bit
*0 = No effect on interrupt register B
1 = Reset software init bit
The interrupt reset register B is used by the external processor to reset the interrupt status bits in the interrupt register
B. Bits loaded with a 1 will allow the corresponding interrupt status bit to reset to 0. Bits loaded with a 0 have no effect
on the interrupt status bits.
2.11.19 Interrupt Enable Register B
Address
1Dh
7
6
5
4
3
2
1
0
Interrupt Reset
Register B (1D)
Software Init
Complete
Reserved
TVP
Command
Ready
Field Rate
Changed
Line Alternation
Changed
Color Lock
Changed
H/V Lock
Changed
TV/VCR
Changed
TV/VCR Changed
H/V Lock Changed
Color Lock Changed
Line Alternation Changed
Field Rate Changed
TVP Command Ready
*0 = TV/VCR status has not changed
*0 = H/V lock status has changed
*0 = Color lock status has changed
*0 = Line alternation has not changed
*0 = Field rate has not changed
*0 = TVP is not ready to accept a new
command
*0 = Software initialization has not
completed
1 = TV/VCR mode detect not changed
1 = H/V lock status has changed
1 = Color lock status has changed
1 = Line alternation has changed
1 = Field rate has changed
1 = TVP is ready to accept a new command
Software Init Complete
1 = Software initialization has completed.
The interrupt enable register B is used by the external processor to mask unnecessary interrupt sources for interrupt
B. Bits loaded with a 1 will allow the corresponding interrupt condition to generate an interrupt on the external terminal.
Conversely bits loaded with a 0 will mask the corresponding interrupt condition from generating an interrupt on the
external terminal. Note this register only affects the external terminal; it does not affect the bits in the interrupt status
register. A given condition can set the appropriate bit in the status register and not cause an interrupt on the external
terminal. To determine if this device is driving the interrupt terminal, either perform a logical AND of the interrupt status
register B with the interrupt enable register B or check the state of the interrupt B bit in the interrupt B active register.
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