SDA5523 Micronas Semiconductor, SDA5523 Datasheet - Page 100

• Manufacturer Part Number: SDA5523
• Description: SDA55xx TVText Pro
• Manufacturer: Micronas Semiconductor

SDA 55xx
2.13.9. Memory Organization
The memory organization concept of the OSD is
based on a flexible pointer concept. All display mem-
ory registers reside in the internal XRAM only.
Fig. 2–16: Memory Organization of On Screen Display
Table 2–78: Pointers to start address of on-screen display registers inside XRAM
100
Special Function Registers:
POINTARRAY0
POINTARRAY1
SFR Address
XX
XX
H
H
+ 02
H
Name
POINTARRAY0
POINTARRAY1
internal XRAM:
GDW
1-bit DRCS matrices
4-bit DRCS matrices
2-bit DRCS matrices
Display-Memory
Cursor matrix
CLUT
CLUT
DISPOINTh
GDWCURPOINTh
CLUTPOINTh
DRC4POINTh
DRC2POINTh
DRC1POINTh
User Data
VBI
Sept. 10, 2004; 6251-556-3DS
There are 4 Bytes of SFR registers which are pointing
to two pointer arrays inside the XRAM as shown in
Table 2–78
Function
Pointer to pointer array 0
Pointer to pointer array 1
DATA SHEET
Micronas