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參數(shù)資料
| 型號： | T8301 |
| 廠商： | Lineage Power |
| 英文描述： | Phone-On-A-Chip IP Solution(集成電話芯片IP解決方案) |
| 中文描述： | 電話在一個芯片IP解決方案（集成電話芯片的IP解決方案） |
| 文件頁數(shù)： | 3/4頁 |
| 文件大?。?/td> | 231K |
| 代理商： | T8301 |
Product Brief
April 2000
Lucent Technologies Inc.
3
Phone-On-A-ChipIP Solution
T8301/T8302
The Chip Set Functions
5-9436M1F
Figure 2. T8301 Block Diagram
5-9437M1F
Figure 3. T8302 Block Diagram
TONE RINGER
AUDIO CODEC
DMA
DECODE
DSP1627 CORE
& POWER
JTAG
TIMER
MEMORY
INTERFACE
DCORE
INSRAM
CLOCK SIGNALS
JTAG SIGNALS
SRAM
SIO
BIO
DIFSPK1A/B
+
IROM
PGA
DIFMICA
DIFMICB
HMIC
DIFSPK2A/B
SPK2
SRAM
MIC
SRAM
SPK1
SRAM
HSPK
ARM
INTERFACE
DSP
INTERFACE
EMI
INTERFACE
JTAG
SIGNALS
DSP
COMMUNICATION
INTERFACE
EXTERNAL
MEMORY
INTERFACE
JTAG
TIC
RESET
TIMER
PPI
KEY/LAMP
CONTROLLER
APB BUS
ETHERNET
MAC
INTERRUPT
CONTROLLER
ARM 940T
ASB BUS
AMBA
APB BRIDGE
EQ
U
B
INSRAM
DMA
CONTROLLER
10/100
REPEATER
SSI
UART
USB
IrDA
EPORT 1
EPORT 2
The chip functions are depicted in the Phone-On-A-
Chip block diagrams above. Some of the key functions
included in each IC are described in the following two
sections.
IPT_DSP Chip Set (T8301)
Integrated Amplifiers
All the gain amplifiers are integrated on the T8301,
eliminating the need for external amplification.
Adaptable Acoustic Echo Cancellation
Adaptable acoustic echo cancellation algorithm auto-
matically adjusts the AEC for the environment (room
size, telephone housing, etc.).
Tone Generation
DTMF, ringing, and call progress tones are generated
by the T8301. The particular tone is selected via an API
command from the T8302.
IPT_ARM Chip Set (T8302)
Integrated PHY and Repeater
Two 10/100 Mbits/s Ethernet PHYs are integrated on
the T8302. This eliminates the need for external PHY
and allows the board to have a smaller footprint. A sec-
ond Ethernet port provides the ability to connect a PC
to the network through the Phone-On-A-Chip based
telephone. A programmable repeater allows software
configuration of multiple segments such that stations
can be easily segregated into individual work groups.
Transfer of data between the IP telephone, PC, and the
network is possible. This repeater can be bypassed.
Prioritization of Real-Time Data
Lucent’s EQuB prioritizes the real-time data over the
non-real-time data packets by preempting hosts trans-
mitting non-real-time data.
Data and Instruction Cache
The ARM940T processor core offers the benefit of
4 Kbytes instruction cache and 4 Kbytes data cache.
Advantages of Phone-On-A-Chip
Lower Total System Cost
Phone-On-A-Chip
eliminates the need for expensive
glue logic. All the required interfaces such as keypad,
LED, amplifiers, and PHYs are integrated within the
device. The bundled target license fee for
Trillium Digi-
tal Systems
H.323 and RTP/RTCP protocol stack and
Wind River Systems
VxWorks
RTOS reduces cost.
High Sound Quality
The differential amplifiers the speaker and the micro-
phone are integrated with the product, providing very
high sound quality at low cost.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| T8302 | Phone-On-A-Chip IP Solution(集成電話芯片IP解決方案) |
| T8502 | Dual PCM Codecs with Filters(帶濾波器的雙PCM編解碼器) |
| T8503 | Dual PCM Codecs with Filters(帶濾波器的雙PCM編解碼器) |
| T8531 | Tone Processing(音調(diào)處理器件) |
| T8531A | Tone Processing(音調(diào)處理器件) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| T8301AX | 制造商:MOLEX 制造商全稱:Molex Electronics Ltd. 功能描述:Terminator Die |
| T8301BX | 制造商:MOLEX 制造商全稱:Molex Electronics Ltd. 功能描述:Terminator Die |
| T8301DX | 制造商:MOLEX 制造商全稱:Molex Electronics Ltd. 功能描述:Terminator Die |
| T8302 | 制造商:AGERE 制造商全稱:AGERE 功能描述:T8302 Internet Protocol Telephone Advanced RISC Machine (ARM) Ethernet QoS Using IEEE 802.1q |
| T8302A | 制造商:MOLEX 制造商全稱:Molex Electronics Ltd. 功能描述:Terminator Die |
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