參數(shù)資料
型號: SDA5251-2
廠商: SIEMENS A G
元件分類: 圖文
英文描述: ICs for Consumer Electronics
中文描述: TELETEXT DECODER, PDIP52
文件頁數(shù): 32/143頁
文件大?。?/td> 1050K
代理商: SDA5251-2
SDA 525x
Semiconductor Group
32
1998-04-08
Teletext-Sync-Interrupt-Register TTXSIR
Teletext-Sync-Interrupt-
Register
Default after reset: 00
H
(MSB)
TTXSIR
SFR-Address C8
H
(LSB)
VSY
HSY
PCLK
DVIREN
DVIRST
DHIREN DHIRST
DHIRST
1 = display horizontal sync interrupt request (set by positive
edge of HS, reset by software).
DHIREN
1 = enable display horizontal sync interrupt requests.
DVIRST
1 = display vertical sync interrupt request (set by positive edge
of VS, reset by software).
DVIREN
1 = enable display vertical sync interrupt requests.
PCLK
Reflects state of internal pixel clock.
HSY
Reflects state of HS-signal decoded by SC-decoder
VSY
Reflects state of VS-signal decoded by SC-decoder
(SANDC=1).
Reflects state of VS-pin (SANDC=0).
Bit 7
reserved, should be set to ‘0’
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