SDA5252 SIEMENS [Siemens Semiconductor Group], SDA5252 Datasheet - Page 32

• Manufacturer Part Number: SDA5252
• Description: TVTEXT 8-Bit Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Semiconductor Group
Teletext-Sync-Interrupt-Register TTXSIR
Teletext-Sync-Interrupt-
Register
Default after reset: 00
DHIRST
DHIREN
DVIRST
DVIREN
PCLK
HSY
VSY
Bit 7
(MSB)
–
VSY
H
1 = display horizontal sync interrupt request (set by positive
1 = enable display horizontal sync interrupt requests.
1 = display vertical sync interrupt request (set by positive edge
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 ‘0’
HSY
edge of HS, reset by software).
of VS, reset by software).
PCLK
TTXSIR
32
DVIREN
DVIRST
DHIREN DHIRST
SFR-Address C8
SDA 525x
1998-04-08
(LSB)
H