//Introduction from Zilog's book: //Digital Signal Processors, Databook //DC 8299-04 //19950219/Scanned and corrected by WJvG INTRODUCTION Zilog's Focus on Application Specific Products Helps You Maintain Your Technological Edge Zilog's DSP products are suitable for a broad range of applications, from general-purpose use through speech synthesis and mass storage. Whichever device you choose, you'll find a comprehensive feature set and easy-to-use development tools to speed your design time to production. Z89321/371 16-Bit Digital Signal Processor The Z89321/371 provides a 50 ns instruction cycle time. Integrated peripherals include a dual CODEC interface, 13-bit timer and a wait-state generator. The CODEC interface provides pre-scaled transfer rates for 8, 16 and 64-bit data transfers and direct-connect capabilities for a wide variety of CODECs. U-law decoding is provided in hardware for the 8-bit mode. For prototyping, the Z89371 (OTP device) provides up to 16 MHz operation. The Z89371 proto-pak provides up to 20 MHz operation. Z89C00 I6-Bit Digital Signal Processor With a high-performance single-cycle multiply/accumulate instruction and zero software overhead pointer architecture, the Z89C00 is an excellent choice for many DSP designs. Flexible general-purpose I/O features, including a 16-bit address and data bus and a 16-bit I/O bus, make it easy to configure even slow peripherals into the system. A comprehensive set of development support tools makes it even easier to work with the Z89C00. This device offers broad functionality in an affordable package for consumer and industrial product designs alike. Z89320 16-Bit Digital Signal Processor The Z89320 provides the computational power of the Z89C00 at a cost effective price. This device incorporates 512 bytes of RAM and 4K words of program ROM. Two general purpose user inputs and two user outputs provide convenient peripheral monitoring or control. A dedicated 16-bit I/O bus assists in transferring information to and from external peripherals. The compact instruction set is standard to all Zilog DSP products and provides ease-of-use programming. Applications include high-volume multimedia, digital audio, speech processing, and system control. Z86C95 CMOS Z8 Digital Signal Processor The Z86C95 is a ROMless Z8 microcontroller with an embedded 16-bit DSP. This device is well suited for servo control in mass storage applications, digital filtering in motor controllers and non-interruptible power supplies. The slave DSP executes most instructions in a single clock cycle, including 16-bit by 16-bit multiplication and accumulation. The Z86C95 has 16 digital I/O lines, an 8-channel, 8bit A-to-D converter with 2 us conversion time, an 8-bit D-to-A converter with programmable gain, a PWM, UART, and SPI, three 16-bit timers with capture and compare registers, a hardwired 16-bit by 16-bit multiplier and a 32-bit/16-bit divider for the Z8. Support tools include demonstration boards, assemblers/linkers, and a real time trace emulation system. Z89120, Z89920* (*ROMless) 16-Bit Mixed Signal Processor Multiple-chip capability in a single-chip solution is the hallmark of the Z89120. Combining 16-bit DSP functions with an integrated 8-bit microcontroller and A/D, D/A converters, it is an optimal choice for communications applications including audio, fax, voice mail, modems and data transmission, as the Z89120 can handle several of these functions without additional hardware. Its very low power consumption and small footprint make it ideal for portable use, or in applications requiring long-term continuous operation, such as security systems and other supervisory instrumentation The Z89920 is the ROMless version of the Z89120 device. Z89121, Z89921* (+ROMless) 16-Bit Mixed signal Processor The Z89121 system processor offers exceptional flexibility for applications like voice mail and personal communications, which involve substantial I/O and storage requirements. Two Codec ports allow extensive analog interfacing, and expanded DSP program memory space -plus a 32-Mbit DRAM interface- accommodates digital speech generation and storage. The Z8912's compact design provides maximum space-efficiency for remote messaging and paging applications. The Z89921 is the ROMless version of the Z89121 device. DSP Application Notes Zilog's ASSPs are optimized for maximum functionality in specific applications. To develop an Innderstanding of the technology of the application, Zilog builds actual end products. Written from our experience developing proven designs, Zilog's application notes offer a useful guide for designers. DSP Support Products Zilog recognizes the customer's need to successfully design and develop new systems or applications quickly with maximum reliability and performance. The DSP support products included in this databook feature the latest component support tools for accomplishing these goals. //end