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ST92185B датащи(PDF) 114 Page - STMicroelectronics

номер детали ST92185B
подробное описание детали  16K/24K/32K ROM HCMOS MCU WITH ON-SCREEN-DISPLAY
PDF  178 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST92185B датащи(HTML) 114 Page - STMicroelectronics

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ST92185B - ON SCREEN DISPLAY (OSD)
ON SCREEN DISPLAY (Cont’d)
7.4.6.4 Building a Parallel Mode, 40 Char, Line
mode Display
Half-Page Location:
The pair of adjacent 0.5 Kbyte blocks of half page
content is stored in the TDSRAM location pointed
to by the PG3..PG0 bits. One block contains the
characters, the other block contains the attribute
bytes.
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 Header/Status attributes are stored in this
block at offset 80h.
The Row attribute (row count) is stored in this
block at offset 100h and contains 12 bytes for line
mode (see DCM1R register description).
Row Scrolling Buffer Location:
The scrolling buffer corresponds to the Row 12
when the scrolling feature is used (in this case 11
rows are scrolled).
Figure 74. Parallel (40 Characters) Line Mode Mapping
See Figure 22 for Address Values
Resolution 1K bytes
See Figure 21 for Address Values
0.5K TDSRAM
Header Char.
Resolution 0.5K bytes
Status Row 0
Status Row 1
Free Space
Header Attr.
Status Row 0
Status Row 1
Free Space
Free Space
Row Attr.
80h
100h
0.5K TDSRAM
0.5K TDSRAM
Row 1 Attr.
Row 11 Attr.
Free Space
Row 12/Scrolling Buffer
Row 1 Char.
Row 11 Char.
Free Space
Row 12/Scrolling Buffer



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