SDA5250 Datasheet, PDF (67/143 Pages) Siemens Semiconductor Group – TVTEXT 8-Bit Microcontroller

SDA 525x
Teletext Sync Interrupt Request Register TTXSIR
Teletext Sync Interrupt
Request Register
Default after reset: 00_H
(MSB)
–
VSY
HSY
TTXSIR
SFR-Address C8_H
(LSB)
PCLK DVIREN DVIRST DHIREN DHIRST
VSY, HSY, PCLK
DVIREN
DVIRST
DHIREN
DHIRST
These bits are no interrupt bits. They are described in
Chapter “Display Special Function Registers” on
page 24.
Enables or disables the display vertical sync interrupt request.
If DVIREN = 1, this interrupt will be enabled.
Display vertical sync interrupt request flag. Set by the rising
edge of the display vertical sync pulse. Must be cleared by
software.
Enables or disables the display horizontal sync interrupt
request.
If DHIREN = 1, this interrupt will be enabled.
Display horizontal sync interrupt request flag. Set by the rising
edge of the display horizontal sync pulse. Must be cleared by
software.
Semiconductor Group
67
1998-04-08