Z9025106PSG Zilog, Z9025106PSG Datasheet - Page 30

• Manufacturer Part Number: Z9025106PSG
• Description: IC 32K 8BIT DTC OTP 42-DIP
• Manufacturer: Zilog

Specifications of Z9025106PSG

• Applications: TV Controller
• Core Processor: Z8
• Program Memory Type: OTP (32 kB)
• Controller Series: Digital Television Controller (DTC)
• Ram Size: 300 x 8
• Interface: I²C, 2-Wire Serial
• Number Of I /o: 27
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 42-DIP (0.600", 15.24mm)
• Processor Series: Z902x
• Core: Z8
• Data Bus Width: 8 bit
• Program Memory Size: 32 KB
• Data Ram Size: 300 B
• Interface Type: I2C
• Maximum Clock Frequency: 6 MHz
• Number Of Programmable I/os: 27
• Mounting Style: Through Hole
• On-chip Adc: 4 bit, 4 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5
On-Screen Display
5.1
The On-Screen Display (OSD) module generates and displays a 10 row by 24
columns of 512 characters at 14 x 18-dots resolution. The color of each character
can be specified independently.
The televison OSD controller uses H
internal circuitry to the video signal, then outputs RGB and Video Blank (VBLANK)
signals. The VBLANK signal is used to multiplex the OSD signal and video signal
onto the screen. The result is that the On-Screen Display is superimposed over
the TV picture.
The display results from the successful timing of several components:
•
•
•
•
•
•
OSD Position
OSD Positioning is controlled by programming the following registers:
•
•
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OSD Control Register
Table 8
Bit
R/W
Reset
Note: R = Read W = Write X = Indeterminate
OSD Positioning
Second Color Feature
Mesh and Halftone Effect
OSD Fade
Inter-Row Spacing
Character Generation
OSD Control Register (Table 8)
Vertical Position Register (Table 9)
Horizontal Position Register (Table 10)
OSD Control Register 00h:Bank A (OSD_CNTL)
7
R/W
0
6
R/W
x
5
R/W
x
SYNC
4
32 KB Television Controller with OSD
R/W
and V
x
3
SYNC
R/W
x
signals to synchronize its
2
R/W
x
1
R/W
PS001301-0800
x
0
R/W
x
22