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| SDA5250 Datasheet, PDF (32/143 Pages) Siemens Semiconductor Group – TVTEXT 8-Bit Microcontroller | |||
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SDA 525x
Teletext-Sync-Interrupt-Register TTXSIR
Teletext-Sync-Interrupt-
Register
Default after reset: 00H
(MSB)
â
VSY
HSY
TTXSIR
SFR-Address C8H
(LSB)
PCLK DVIREN DVIRST DHIREN DHIRST
DHIRST
DHIREN
DVIRST
DVIREN
PCLK
HSY
VSY
Bit 7
1 = display horizontal sync interrupt request (set by positive
edge of HS, reset by software).
1 = enable display horizontal sync interrupt requests.
1 = display vertical sync interrupt request (set by positive edge
of VS, reset by software).
1 = enable display vertical sync interrupt requests.
Reflects state of internal pixel clock.
Reflects state of HS-signal decoded by SC-decoder
Reflects state of VS-signal decoded by SC-decoder
(SANDC=1).
Reflects state of VS-pin (SANDC=0).
reserved, should be set to â0â
Semiconductor Group
32
1998-04-08
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