參數(shù)資料
型號(hào): Z90T366PZ016SCRXXXX
英文描述: SCR Thyristor; Thyristor Type:Standard Gate; Peak Repetitive Off-State Voltage, Vdrm:800V; On-State RMS Current, IT(rms):6A; Peak Non Repetitive Surge Current, Itsm:100A; Gate Trigger Current Max, Igt:15mA RoHS Compliant: Yes
中文描述: 微控制器
文件頁數(shù): 40/187頁
文件大?。?/td> 2235K
代理商: Z90T366PZ016SCRXXXX
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Z90T366 ROM and Z90T361 OTP
eZVision 64 KWord Television Controller with OSD
PS005901-1100
32
2.12 On-Screen Display (OSD)
The Z90T366 provides sophisticated on-screen display features. On-Screen
Display has the following two modes:
OSD
Used to generate TV control OSD
CCD
Used to display Closed Caption information
OSD mode provides access to the full set of control attributes including latched
and unlatched attributes. Unlatched attributes can be modified on a character-by-
character basis. Control characters change latched attributes.
Any 256-character set can be displayed with many display attributes, including
underlining, italics, blinking, eight foreground and background colors, character
position offset delay, and background transparency. A 16-bit display character
represents foreground color, background color, and underline attributes, which
can be modified character by character. In addition, the Z90T361 supports eight
fixed plus eight programmable color palettes out of 64 colors, independent left
and right shadows with color control. Shadows are available on transparent and
nontransparent backgrounds. Semi-transparency is supported on a character-by-
character basis. A character’s pixel array is stored as 16, 18, or 20 words in
Character Generation ROM (CGROM).
Additional hardware provides the capability to display characters at two and three
times normal size. The smoothing logic contained in the on-screen display
improves the appearance of two and three times normal size characters.
Shadows can be activated to improve the visibility of characters by adding a
border (one pixel wide) on each side.
The Z90T366 provides RGB signals and a video blank signal. RGB outputs are
available in two modes: digital and analog. In digital mode, the output RGB
signals correspond to a primary colors palette. Analog mode supports 15 different
palettes, which can be chosen under software control. In analog mode, each RGB
output is generated by a 2-bit digital-to-analog converter. The user can switch the
2-bit digital inputs of the digital-to-analog converter to Port pins (Port10, Port13,
Port14, Port15, Port18 and Port08) under software control by setting bit9 in
register R3(1).
Video synchronization is normally obtained from H_FLYBACK and V_FLYBACK
but can be generated by the Z90T366 and driven to the external deflection unit
using the bidirectional H
SYNC
and V
SYNC
ports when external video
synchronization signals are not present.
OSD is completely software controlled. Hardware supports the optimum
generation of the character-based OSD; however, the CPU can bypass it and
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