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| Z89319/Z89328 Z89319/328 DIGITAL TELEVISION CONTROLLER IN-CIRCUIT EMULATOR (ICE) DEVICE FEATURES s Part Number Z89319 Z89328 ROM (Word) 0 0 RAM (Word) 0 0 Speed (MHz) 12 12 s s s 0C to +70C Temperature Range Direct Closed Caption Decoding TV Tuner Serial Interface Customized Character Set Character Control Mode Directly Controlled Receiver Functions s 124-Pin Grid Array (PGA) Package (Z89319) 100-Pin Quad Flat Pack (QFP) Package (Z89328) 4.5- to 5.5-Volt Operating Range Z89C00 RISC Processor Core s s s s s GENERAL DESCRIPTION The Z89319 and Z89328 are ROMless versions of the Z89300 family of Zilog's Digital Television Controllers designed for use in emulators and development boards to provide complete audio and video control of television receivers, video recorders, and advanced on-screen display facilities. The powerful Z89C00 RISC processor core allows users to control on-board peripheral functions and registers using the standard processor instruction set. In closed caption mode, text can be decoded directly from the composite video signal and displayed on the screen with assistance from the processor's digital signal processing capabilities. The character representation in this mode allows for a simple attribute control through the insertion of control characters. The character control mode provides access to the full set of attribute controls. The modification of attributes is allowed on a character-by-character basis. The insertion of control characters permits direction of other character attributes. Display attributes, including underlining, italics, blinking, eight foreground/background colors, character position offset delay, and background transparency, are made possible through a fully customized 512 character set, formatted in two 256 character banks. Serial interfacing with the television tuner is provided through the tuner serial port. Digital channel tuning adjustments may be accessed through the industrystandard I2C port. Additional hardware provides the capability to display two to three times normal size characters. The smoothing logic contained in the on-screen display circuit improves the appearance of larger fonts. Special circuitry can be activated to improve the visibiity of text by adding a rightsided shadow effect to the characters. Receiver functions such as color and volume can be directly controlled by six 8-bit pulse width modulated ports. Notes: All Signals with a preceding front slash, "/", are active Low, e.g.: B//W (WORD is active Low); /B/W (BYTE is active Low, only). Power connections follow conventional descriptions below: Connection Power Ground Circuit VCC GND Device VDD VSS 235 Z89319/Z89328 GENERAL DESCRIPTION (Continued) Capture IRIN ADC ADC0 ADC1 ADC2 ADC3 ADC4 ADC5 Port 0 Port 00 Port 01 Port 02 Port 03 Port 04 Port 05 Port 06 Port 07 Port 08 Port 09 Port 0A Port 0B Port 0C Port 0D Port 0E Port 0F Control XTAL1 XTAL2 LPF HSYNC HSYNC2 VSYNC /Reset CPU V3(B) RAM 1K x 16 Address ROM Addr Data PWM PWM1 PWM2 PWM3 PWM4 PWM5 PWM6 CVI Port 17 Port 00 Port 05 Port 04 Port1 Port 10 Port 11 Port 12 Port 13 Port 14 Port 15 Port 16 Port 17 Port 18 I2C SCL/MSCL2 SCD/MSCD2 MSCL1 MSCD1 OSD V1(R) V2(G) Port 01/11 Port 02/12 PWM6 Register Addr/Data ROM 32K x 16 ROM Data Functional Block Diagram 236 |
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