參數(shù)資料
型號: TVP5146M1PFP
廠商: TEXAS INSTRUMENTS INC
元件分類: 顏色信號轉(zhuǎn)換
英文描述: COLOR SIGNAL DECODER, PQFP80
封裝: POWERPAD, PLASTIC, QFP-80
文件頁數(shù): 77/104頁
文件大?。?/td> 593K
代理商: TVP5146M1PFP
258
2.11.66 VDP FIFO Interrupt Threshold Register
Subaddress
BDh
Default
80h
7
6
5
4
3
2
1
0
Threshold [7:0]
Threshold [7:0]: This register is programmed to trigger an interrupt when the number of words in the FIFO exceeds
this value.
NOTE: 1 word equals 2 bytes.
2.11.67 VDP FIFO Reset Register
Subaddress
BFh
Default
00h
7
6
5
4
3
2
1
0
Reserved
FIFO reset
FIFO reset: Writing any data to this register clears the FIFO and VDP data registers (CC, WSS, VITC and VPS). After
clearing them, this register is automatically cleared.
2.11.68 VDP FIFO Output Control Register
Subaddress
C0h
Default
00h
7
6
5
4
3
2
1
0
Reserved
Host access enable
Host access enable: This register is programmed to allow the host port access to the FIFO or to allow all VDP data
to go out the video output.
0 = Output FIFO data to the video output Y[9:2] (default)
1 = Allow host port access to the FIFO data
2.11.69 VDP Line Number Interrupt Register
Subaddress
C1h
Default
00h
7
6
5
4
3
2
1
0
Field 1 enable
Field 2 enable
Line number [5:0]
Field 1 enable:
0 = Interrupt disabled (default)
1 = Interrupt enabled
Field 2 enable:
0 = Interrupt disabled (default)
1 = Interrupt enabled
Line number [5:0]: Interrupt line number (default 00h)
This register is programmed to trigger an interrupt when the video line number exceeds this value in bits [5:0]. This
interrupt must be enabled at address F4h.
NOTE: The line number value of 0 or 1 is invalid and does not generate an interrupt.
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