ST92185B2 datasheet(115/178 Pages) STMICROELECTRONICS

Part #	ST92185B2

Description	16K/24K/32K ROM HCMOS MCU WITH ON-SCREEN-DISPLAY

PDF	178 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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ST92185B - ON SCREEN DISPLAY (OSD)

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.

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.

Figure 75. Serial Mode (80 Characters) - Page Mapping

See Figure 22 for Address Values

1K TDSRAM

Row 1 Left

Row 23

Resolution 2K bytes

1K TDSRAM

Row 1 Right

See Figure 23 for Address Values

Row 23

0.5K TDSRAM

Header

Resolution 0.5K bytes

Status Row 0

Status Row 1

Free Space

Scrolling Buffer

ST92185B2 Datasheet(PDF) 115 Page - STMicroelectronics