SDA6000 Datasheet, PDF (341/380 Pages) Infineon Technologies AG – Teletext Decoder with Embedded 16-bit Controller

SDA 6000
Special Function Registers:
STRVBI
Slicer and Acquisition
Reset Value: 0400_H
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ACQ 0
ON
VBIADR(23..10)
Bit
ACQON
VBIADR
(23 … 10)
ACQISN
Function
Enable Acquisition
0: The ACQ interface does not access memory (immediately
inactive)
1: The ACQ interface is active and writes data to memory (switching
on is synchronous to V)
Define the 14 MSB’s of the start address of the VBI buffer.
The VBI buffer location can be aligned with any 1 KByte memory
segment.
Reset Value: 0000_H
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0
0
0
0 CC_IE CC_IR L23_ L23_ HS2_ HS2_ VS2_ VS2_ HS1_ HS1_ VS1_ VS1_
IE IR
IE
IR
IE
IR
IE
IR
IE
IR
rw rw rw rw rw rw rw rw rw rw rw rw
Bit
VS1_IR
VS1_IE
HS1_IR
Function
VS interrupt. The vertical sync impulse can be used to have field
synchronization for the software. (VS of slicer 1 is used).
0: No request pending.
1: This source has raised an interrupt request.
Interrupt Enable Bit
0: Disables the interrupt.
1: Enables the interrupt.
HS interrupt. The horizontal sync impulse can be used to implement a
software line counter. (HS of slicer 1 is used).
0: No request pending.
1: This source has raised an interrupt request.
Users Manual
12 - 10
2000-06-15