DOC: Controller Dramatically Shrinks Size Costs Contains On-Chip, User

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DOC: Controller Dramatically Shrinks Size Costs Contains On-Chip, User

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DOC: Controller Dramatically Shrinks Size Costs Contains On-Chip, User-Programmable MIPS Digital Signal Processor
Siemens developed telecommunication chip that provides almost features building systems single chip. Oriented Controller (PEB 20560) used central switching controller small PBXs switching controller line cards. comprises necessary functional blocks digital switching signalling well DTMF/tone handling conferencing. Only layer transceivers integrated. D-channel arbiters significantly reduce need HDLC controllers from down on-chip, user programmable 16-bit Digital Signal Processor (DSP) offers MIPS processing power music-on-hold, conferencing, voice-mail, modem emulation etc. well user programmable functions.
high integration functions chip speeds design cycles, decreases board sizes enables telecom systems manufacturers dramatically reduce size cost small medium-sized PBXs. That makes possible bring functions larger market integrate data video communication addition telephone features. mode, provides fully usable IOM®-2 interfaces control ISDN analog subscribers. IOM-2 industry standard created Siemens interconnecting telecommunication ICs. transferring information (voice signalling) from subscriber lines time-slots communication highways, also provides four highways with time-slots. line card mode, provides fully usable IOM-2 interfaces with IOM-2 subframes limited IOM-2 interfaces four highways with timeslots. control ISDN analog subscribers.
-2Siemens Corporate Communications Corporate Press Office 80312 Munich Tel. (++49 2824 Reference number: 1196.013 Press Office Semiconductors Georg-Ludwig Radke P.O.Box D-81617 Munich, Germany Phone (++49 4144 8480, 8482
-2Signalling handled eight assignable HDLC controllers, each with 64-byte data FIFO transmit receive direction (FIFO First First Out). them, called SACCO-A (Special Application Communication Controller-A) dedicated communication between ISDN terminal equipment line card. They multiplexed different integrated D-channel arbiters different subscribers signalling purpose (LAP-D protocol). D-channel arbiters facilitate ,,simultaneous,, serving D-channels with only HDLC controllers, enabling significant reduction HDLC controllers (two instead 64). Four slightly modified HDLC controllers called SIDEC SACCO based ISDN D-channel Exchange Controllers) assignable time-slot data upstream downstream direction four IOM-2 interfaces. Communication between line cards group controller handled dedicated SACCO-B controllers. They also assignable time-slot data upstream downstream direction four IOM-2 interfaces highways. Optionally, both controllers used stand alone HDLC controllers with 8.192 Mbit/s transfer rate. Support Direct Memory Access (DMA) also provided.
On-Chip Digital Signal Processor on-chip, user programmable 16-bit Digital Signal Processor (DSP) developed Siemens cooperation with Group (USA). With access time-slots, this high-performance execute routines tone/DTMF Dual Tone MultiFrequency) generation recognition, music-on-hold, conferencing, voice-mail, modem emulation etc. integrated provides MIPS, which allows additional routines implemented user. Control Unit (DCU) responsible control external memories, emulating support, interrupt handling, arbitration, etc. communicates with external microprocessor bi-directional mail-box. multiplexed 8-bit microprocessor interface compatible with Siemens, Intel partly Motorola schemes. integrated watch-dog timer supports recovery from software hardware failures. integrated Universal Asynchronous Receiver/Transmitter (UART) compatible with standard 16C550A type used system tests program downloads V.24 interface. also includes interrupt controller, multifunctional input/output port programmable clock generator with built-in logic master slave configurations. serial test interface provides boundary scan support cost effective board testing according IEEE standards. on-chip emulation allows program debugging also field, easy accessable serial interface.
-3Siemens Corporate Communications Corporate Press Office 80312 Munich Tel. (++49 2824 Reference number: 1196.013 Press Office Semiconductors Georg-Ludwig Radke P.O.Box D-81617 Munich, Germany Phone (++49 4144 8480, 8482
-3The comprehensive design provides maximum flexibility designing applicationspecific system configurations. Siemens provides customers with necessary development tools support speed development cycles simplify design systems line cards. development software contains macro assembler, linker/locator, debugger simulator. simulator allows verification monitoring routines even without hardware. development board with extender used quick start into development projects. Siemens will also offer oriented evaluation board with basic software modules. manufactured 0.6-µm CMOS-technology delivered 160-pin
MQFP packages. Samples available now.
registered trademark Siemens Aktiengesellschaft.
Siemens Corporate Communications Corporate Press Office 80312 Munich Tel. (++49 2824
Reference number: 1196.013 Press Office Semiconductors Georg-Ludwig Radke P.O.Box D-81617 Munich, Germany Phone (++49 4144 8480, 8482

DOC: Controller Dramatically Shrinks Size Costs Contains On-Chip, User

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