ST92195C STMicroelectronics, ST92195C Datasheet - Page 117

• Manufacturer Part Number: ST92195C
• Description: 48-96 Kbyte Rom Hcmos Mcu With On-screen Display And Teletext Data Slicer
• Manufacturer: STMicroelectronics

ST92195C/D - ON SCREEN DISPLAY (OSD)
ON SCREEN DISPLAY (Cont’d)
7.4.6.3 Building a Serial Mode, 40-Char, Line
Mode Display
Half-Page Location
The 0.5 Kbyte block of half-page content is stored
in the TDSRAM location pointed to by the
PG3..PG0 bits.
Figure 73. Serial (40 Characters) Line Mode Mapping
117/249
Row 12/ Scrolling Buffer
Resolution 0.5K bytes
0.5K TDSRAM
Free Space
Row 11
Row 1
Number
(0.5K)
Block
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
TDSRAM
Address
(hex.)
8A00
8C00
8E00
9A00
9C00
9E00
8000
8200
8400
8600
8800
9000
9200
9400
9600
9800
PG3..PG0
TDPR
Value
(Hex.)
A
B
C
D
E
0
1
2
3
4
5
6
7
8
9
F
Header & Status Rows Location
The 0.5 Kbyte block containing the Header, Status
Row 0 and Status Row 1 is pointed to by the
HS3..HS0 bits. The Row attribute (row count) is
stored in this block at offset 100h and contains 12
bytes for line mode (see DCM1R register descrip-
tion).
Row Scrolling Buffer Location
The scrolling buffer corresponds to Row 12 when
the scrolling feature is used (in this case 11 rows
are scrolled).
2K
6K
8K
Resolution 0.5K bytes
See
page 115
Address Values
0.5K TDSRAM
Header Char.
Status Row 0
Status Row 1
Free Space
Free Space
Row Attr.
Figure 70 on
for
100h