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Processor Implementing. AT76C902 Datasheet

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Processor Implementing. AT76C902 Datasheet






AT76C902 Implementing. Datasheet pdf. Equivalent






AT76C902 Implementing. Datasheet pdf. Equivalent


AT76C902

Part

AT76C902

Description

Wireless VoIP Processor Implementing



Feature


www.DataSheet4U.com Features • ARM946 E-STM Core (ARM9) for implementing the VoIP Protocol, TCP/IP, VPN and Controll ing the Phone Functions with Internal 8 K Instruction Cache and 8K Data Cache U sed for Fast Execution of the Communica tions Protocols and RTOS with Reduced P ower Consumption ARM7TDMITM Core (ARM7) for Implementing the 802.11 MAC Layer Configurable Memory .
Manufacture

ATMEL Corporation

Datasheet
Download AT76C902 Datasheet


ATMEL Corporation AT76C902

AT76C902; Banks to Assign Memory where Best Needed in Chip 16-bit Dual-MAC DSP for Implem enting the G.723.1, G.729 and G.711.1 S tandards, in Addition to Acoustic Echo Cancellation Integrated Audio Codec wit h Two Differential Multiplexed Micropho ne Inputs, One Differential Speaker Out put and One Differential Auxiliary Outp ut Path Glueless External Memory Interf ace Supporting up .


ATMEL Corporation AT76C902

to 16 MB of External SRAM, 16 MB of Flas h and 512 MB of SDRAM Hardware Security Accelerators Attached to the Common Bu s Offer Instantaneous Encryption/Decryp tion and Authentication Support for the Following Algorithms: CCM/CTR/CBC Mode s of Advanced Encryption Standard (AES) DES/3DES,WEP64/128, Temporal Key Integ rity Protocol (TKIP) and MD-5, SHA-1 Ha sh Functions for I.

Part

AT76C902

Description

Wireless VoIP Processor Implementing



Feature


www.DataSheet4U.com Features • ARM946 E-STM Core (ARM9) for implementing the VoIP Protocol, TCP/IP, VPN and Controll ing the Phone Functions with Internal 8 K Instruction Cache and 8K Data Cache U sed for Fast Execution of the Communica tions Protocols and RTOS with Reduced P ower Consumption ARM7TDMITM Core (ARM7) for Implementing the 802.11 MAC Layer Configurable Memory .
Manufacture

ATMEL Corporation

Datasheet
Download AT76C902 Datasheet




 AT76C902
www.DataSheet4U.com
Features
ARM946E-STM Core (ARM9) for implementing the VoIP Protocol, TCP/IP, VPN and
Controlling the Phone Functions with Internal 8K Instruction Cache and 8K Data Cache
Used for Fast Execution of the Communications Protocols and RTOS with Reduced
Power Consumption
ARM7TDMITM Core (ARM7) for Implementing the 802.11 MAC Layer
Configurable Memory Banks to Assign Memory where Best Needed in Chip
16-bit Dual-MAC DSP for Implementing the G.723.1, G.729 and G.711.1 Standards, in
Addition to Acoustic Echo Cancellation
Integrated Audio Codec with Two Differential Multiplexed Microphone Inputs, One
Differential Speaker Output and One Differential Auxiliary Output Path
Glueless External Memory Interface Supporting up to 16 MB of External SRAM, 16 MB
of Flash and 512 MB of SDRAM
Hardware Security Accelerators Attached to the Common Bus Offer Instantaneous
Encryption/Decryption and Authentication Support for the Following Algorithms:
CCM/CTR/CBC Modes of Advanced Encryption Standard (AES) DES/3DES,WEP64/128,
Temporal Key Integrity Protocol (TKIP) and MD-5, SHA-1 Hash Functions for IP
Security
USB Slave Interface (Control, Interrupt, Bulk-in and Bulk-out Endpoints)
UART with Support to be used as USART
Serial Peripheral Interface (SPI) and Two Wire Serial Interface (TWI)
64-key Keypad Interface
4x4 LED Matrix Controller
Minimum of 5 GPIO Pins (up to 62 Available on Configuration)
208-lead BGA Package
1.8 Volt Core Voltage Supply
3.3 Volt I/O Voltage Supply
Figure 0-1. Typical Application Using AT76C902
n Usin
Flash
76 CS9R0A2M
Wireless VoIP
Processor
Implementing
the 802.11
Standard
AT76C902
Summary
AT76C902
External
Bus
Interface
ARM946E-S
Protocol Handling
Control
Peripherals
TWI Bus
- Battery Management
- Voltage regulation
- LCD Bias
- Other Phone ASICs
ARM7TDMI
802.11 MAC
802.11
Interface
802.11
PHY
DSP
Subsystem
Audio Codec
Speaker
Microphone
Audio to Headset
Serial Port
Accessory Controls
Battery Charge Voltage
NOTE: This is a summary document.
The complete document is available
under NDA. For more information,
please contact your local Atmel sales
office.
5655AS–VoIP–09/06
DataSheet4 U .com




 AT76C902
www.DataSheet4U.com
1. Description
AT76C902 is a highly integrated ASSP that can be used as part of a wireless phone that utilizes
an 802.11a/b/g wireless LAN medium and carries voice over IP (VoIP) packets. Specified in this
datasheet, an ARM® processor based subsystem performs all of the PLCP and low MAC func-
tions and baseband operations defined in 802.11a/b/g. A TeakDSPCore™and an internal
CODEC perform the decoding and encoding of voice traffic. An interrupt controller and multiple
support peripherals are also included.
1.1 Applications
The VoIP baseband device is intended to be used in a wireless phone which operates by encap-
sulating voice data within IP frames and transmitting the frames over a contention based
wireless medium. Specifically, the first application of the device is targeted at a wireless phone
operating on an 802.11a/b/g wireless LAN at 2.4 GHz and at 5.2 GHz (using 802.11a).
Figure 0-1 shows an example of the device being utilized in a wireless phone.
2 AT76C902 Summary
DataSheet4 U .com
5655AS–VoIP–09/06



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