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MFG:ATMEL D/C:07+
Part Number: AT75C220
MFG: ATMEL
D/C: 07+
Description: The AT75C220, Atmel's latest device in the family of smart internet appliance processors (SIAP), is a high-performance ...
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AT75C220
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DataSheet
General Description
AT75C220 General Description
The AT75C220, Atmel's latest device in the family of smart internet appliance processors (SIAP), is a high-performance processor designed for professional internet appliance applications such as the Ethernet IP phone. The AT75C220 is built around an ARM7TDMI microcontroller core running at 40 MIPS with an OakDSPCore co-processor running at 60 MIPS and a dual Ethernet 10/100 Mbps MAC interface.
In a typical standalone IP phone, the DSP handles the voice processing functions (voice compression, acoustic echo cancellation, etc.) while the dual-port Ethernet 10/100 Mbps MAC interface establishes the connection to the Ethernet physical layer (PHY) that links the network and the PC. In such an application, the power of the ARM7TDMI allows it to run a VoIP protocol stack as well as all the system control tasks.
Atmel provides the AT75C220 with three levels of software modules:
• a special port of the Linux kernel as the proposed operating system
• a comprehensive set of tunable DSP algorithms for voice processing, tailored to be run by the DSP subsystem
• a broad range of application-level software modules such as H323 telephony or POP-3/SMTP E-mail services
AT75C220 Features
• ARM7TDMI™ ARM® Thumb™ Processor Core
• One 16-bit Fixed-point OakDSPCore®
• Dual Ethernet 10/100 Mbps MAC Interface with Voice Priority
• Multi-layer AMBA™ Architecture
• 256 x 32-bit Boot ROM
• 88K bytes of Integrated Fast RAM
• Flexible External Bus Interface with Programmable Chip Selects
• Codec Interface
• Multi-level Priority, Individually-maskable, Vectored Interrupt Controller
• Three 16-bit Timer/Counters
• Additional Watchdog Timer
• Two USARTs with FIFO and Modem Control Lines
• Industry-standard Serial Peripheral Interface (SPI)
• Up to 24 General-purpose I/O Pins
• On-chip SDRAM Controller for Embedded ARM7TDMI and OakDSPCore
• JTAG Debug Interface
• Software Development Tools Available for ARM7TDMI and OakDSPCore
• Supported by a Wide Range of Ready-to-use Application Software, including Multi-tasking Operating System, Networking and Voice-processing Functions
• Available in a 208-lead PQFP Package
• One 16-bit Fixed-point OakDSPCore®
• Dual Ethernet 10/100 Mbps MAC Interface with Voice Priority
• Multi-layer AMBA™ Architecture
• 256 x 32-bit Boot ROM
• 88K bytes of Integrated Fast RAM
• Flexible External Bus Interface with Programmable Chip Selects
• Codec Interface
• Multi-level Priority, Individually-maskable, Vectored Interrupt Controller
• Three 16-bit Timer/Counters
• Additional Watchdog Timer
• Two USARTs with FIFO and Modem Control Lines
• Industry-standard Serial Peripheral Interface (SPI)
• Up to 24 General-purpose I/O Pins
• On-chip SDRAM Controller for Embedded ARM7TDMI and OakDSPCore
• JTAG Debug Interface
• Software Development Tools Available for ARM7TDMI and OakDSPCore
• Supported by a Wide Range of Ready-to-use Application Software, including Multi-tasking Operating System, Networking and Voice-processing Functions
• Available in a 208-lead PQFP Package
AT75C220 Connection Diagram
AT75C220
PDF/DataSheet Download
- Datasheet: AT75C220
- File Size: 1963144 KB
- Manufacturer: ATMEL [ATMEL Corporation]
- Click here to Download
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AT75C220 Relative Products
AT75C140
The AT75C140 Smart Internet Appliance Processor (SIAP ) is a high-performanceprocessor specially designed for network-enabling consumer and industrial applica-tions, such as printers, fax machines, industrial automation, data acquisitionequipment and test eq...
AT75C1222
A functional block diagram of the AT75C1222 Multi-way Conferencing Software Moduleis given in Figure 1.
AT75C1220
The different algorithms are independent. AT75C1220 can be enabled, disabled or programmedindividually.
AT75C1212
A functional block diagram of the AT75C1212 Multi-way Conferencing Software Moduleis given in Figure 1.
AT75C1210
The different algorithms are independent. AT75C1210 can be enabled, disabled or programmedindividually.
AT75C1010
The AT75C1010 is a software module designed to run on the OakDSPCore® sub-system of the AT75 Series Smart Internet Appliance Processor. It implementscommonly used telephony algorithms:• A DTMF generator to dial phone numbers.• A DTMF detector...
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