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ST92185B Datasheet(PDF) 84 Page - STMicroelectronics

Part # ST92185B
Description  16K/24K/32K ROM HCMOS MCU WITH ON-SCREEN-DISPLAY
PDF  178 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST92185B Datasheet(HTML) 84 Page - STMicroelectronics

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ST92185B - DISPLAY STORAGE RAM INTERFACE
7.3 DISPLAY STORAGE RAM INTERFACE
7.3.1 Introduction
The Display RAM (TDSRAM) is used to hold the
OSD data for display.
It can be shared by the following units:
– Display Unit (DIS). This OSD generator is de-
scribed in a separate chapter.
– CPU accesses for control.
The necessary time slots are provided to each unit
for realtime response.
FEATURES:
s
Memory mapped in CPU Memory Space
s
Direct CPU access without significant slowdown
Figure 48. General Block Diagram
VR02094B



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