Z9035112PSC Zilog, Z9035112PSC Datasheet - Page 46

• Manufacturer Part Number: Z9035112PSC
• Description: IC 64KW DIG TV CTRL OTP 52-SDIP
• Manufacturer: Zilog

Specifications of Z9035112PSC

• Applications: TV Controller
• Core Processor: Z8
• Program Memory Type: OTP (128 kB)
• Controller Series: Digital Television Controller (DTC)
• Ram Size: 2K x 8
• Interface: I²C, 2-Wire Serial
• Number Of I /o: 25
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 52-SDIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

The Z90356 hardware supports the following two different data formats:
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In CCD mode, the background color of the characters cannot be changed and is always
preset to BLACK.
In OSD mode, each character occupies a 16-bit word in VRAM. There are two possible
character formats defined: a “display” character and a “control” character. The code stored
in “display” character format defines a character code and up to 7 attributes of the
character.
The “control” character defines latched attributes and is presented on-screen as a space
character. The combination of “display” and “control” characters provides versatile OSD
generation.
Smoothing is supported for double-size (x2) and triple-size (x3) characters only.
In CCD mode, each character occupies 8 bits (one byte) in VRAM. The CCD characters
must be mapped into a 16-bit VRAM data field. The hardware supports compressed
placement of characters in VRAM. Each word in VRAM is represented by a High byte
and a Low byte. A currently active byte is selected by R4(3)<c>. The format and data
representation in both bytes is exactly the same.
There are two possible character formats defined: a “display” character and a “control”
character. The code stored in “display” character format defines a character code. The
“control” character defines up to five attributes (foreground color, italic, underline,
blinking, and transparent). It is presented on screen as a space character. The combination
of Display and Control characters provides the basis for a specified range of attributes
defined by FCC specifications for CCD.
OSD mode, R4(3)<d> = 1 supports a standard OSD with full set of features.
CCD mode, R4(3)<d> = 0 supports reduced features which comply with the
recommendations of the FCC on Closed Caption support.
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