Campbell, CA--March 24, 1997--Zilog Inc. (Campbell, CA) unveiled its newest data communication processor, the Z382, targeted for high-speed ISDN, HDSL, ADSL, and analog modems that support Internet access, video conferencing, remote LAN access, and computer telephony.
The 20-MHz Z380 architecture, featuring fast context switching via four register banks, allows the Z382 processor to rapidly respond to interrupts when switching among tasks.
Additional improvements include two cycles per instruction, 16 Mbytes of linear address space, 16/32-bit instruction set, and dynamic bus sizing. Z80/180 customers can easily port their existing designs to the code-compatible Z380 code without discarding their investment in code development.
The Z382 processor's eight advanced DMA channels are dynamically assignable to client peripherals on the device. Each DMA channel has a pointer into a memory-resident list structure that contains the locations and lengths of data buffers.
To support ADSL applications, the Z382 features three HDLC channels that can operate in HDLC, NRZI, HDLC, and transparent modes, and intelligent DMA controllers to support up to 10 Mbps full-duplex bandwidth.
The HDLC inputs and outputs can be routed to and from the GCI/SCIT or external TDM highway to interface with external transceivers, CODECS, and other devices for ISDN applications.
A full complement of Zilog and third-party support tools allow rapid hardware and software development and verification, speeding up time-to-market.
Zilog's $599 Z382 evaluation kit contains an evaluation board and a debug monitor program to download and debug executable code, and provide access to the device's registers and on-board memory. Application-specific circuits can be added through three expansion daughter-card sites to fully emulate the customer's end product.
Orion Instrument's in-circuit-emulator provides real-time tracing capability, display, and editing of Z382 code. Software support in the form of an assembler, linker, and C-Compiler is available from Production Languages Corp.
The 5V Z382 is available in a 144-pin QFP and a 144-pin VQFP package, and is priced in the $13 range in OEM high volumes.
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