ST92185B STMicroelectronics, ST92185B Datasheet - Page 115

• Manufacturer Part Number: ST92185B
• Description: 16k/24k/32k Rom Hcmos Mcu With On-screen-display
• Manufacturer: STMicroelectronics

ON SCREEN DISPLAY (Cont’d)
7.4.6.5 Building a Serial Mode, 80 Char, Full
Page Display
Half-Page Location:
The pair of adjacent 1 Kbyte blocks of page con-
tent is stored in the TDSRAM location pointed to
by the PG3..PG0 bits. The first block contains the
left side of the page, the second block contains the
right side of the page.
Figure 75. Serial Mode (80 Characters) - Page Mapping
1K TDSRAM
Scrolling Buffer
Free Space
Row 1 Left
Row 23
See
Figure 23
Resolution 2K bytes
for Address Values
Scrolling Buffer
1K TDSRAM
Row 1 Right
Free Space
Row 23
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.
Row Scrolling Buffer Location:
The scrolling buffer corresponds to the 40 bytes
following the Row 23 when the scrolling feature is
used.
ST92185B - ON SCREEN DISPLAY (OSD)
See
Figure 22
Resolution 0.5K bytes
0.5K TDSRAM
Status Row 0
Status Row 1
Free Space
Header
for Address Values
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