MC68HC908LD64 Datasheet, PDF (287/362 Pages) Freescale Semiconductor, Inc – Microcontrollers

On-Screen Display (OSD)
OSD Registers
NOTE:
To avoid undesirable on-screen displays, such as jittering and
characters wrapping to the top, care should be taken when implementing
character height expansion and vertical starting position — ensure the
last line of row14 does not exceed the PVSYNC pulse of the next frame.
Characters Height Expanded by 4-bit BRM
Character in Font Memory
12 × 16 matrix
CH[3:0] = $0
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 Lines
CH[3:0] = $6 22 Lines
CH[3:0] = $9 25 Lines
CH[3:0] = $F 31 Lines
Figure 18-13. Character Font Matrix Height Expansion by CH[3:0]
1x
16 to 31 lines
2x
32 to 62 lines
3x
48 to 93 lines
CH[5:4] = 0:0 or 0:1
CH[5:4] = 1:0
CH[5:4] = 1:1
Figure 18-14. Display Character Height
MC68HC908LD64 — Rev. 3.0
Freescale Semiconductor
On-Screen Display (OSD)
Data Sheet
287