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參數(shù)資料
| 型號(hào)： | T8301 |
| 英文描述： | T8301 Internet Protocol Telephone Phone-On-A-Chip⑩ IP Solution DSP |
| 中文描述： | T8301因特網(wǎng)協(xié)議電話熱線電話在一個(gè)芯片⑩DSP的IP解決方案 |
| 文件頁(yè)數(shù)： | 7/190頁(yè) |
| 文件大?。?/td> | 1535K |
| 代理商： | T8301 |
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Lucent Technologies Inc.
7
Advance Data Sheet
December 2000
T8301 Internet Protocol Telephone
Phone-On-A-Chip
IP Solution DSP
3 Overview
The T8301 (DSP) interfaces with the T8302 (
ARM
) to form the basic building blocks for an internet protocol tele-
phone (IPT), residing on a local area network (LAN); see Figure 2.
At the heart of the T8301 integrated circuit is the Lucent Technologies Microelectronics Group DSP1627 digital sig-
nal processor core. The DSP1627’s high-performance (80 MIPS) and single-cycle multiply accumulate instruction
provide excellent support for execution of voice compression/decompression and echo cancellation algorithms.
The DSP1627 core and the analog audio circuitry included on the T8301 IC provide a low-cost silicon solution for
the IP exchange telephone’s audio requirements. A block diagram of the T8301 integrated circuit is shown in
Figure 3.
The DSP1627 core contains the DSP1600 core processor, bit manipulation unit (BMU), dual-port RAM (DPRAM),
instruction/coefficient ROM (IROM), bit I/O (BIO), serial I/O (SIO), timer, clock PLL control, vectored interrupts and
traps, power management, external memory interface (EMI) with wait-state control, and a JTAG interface with inte-
gral hardware development system support.
The DSP1627 peripherals communicate with the DSP1627 core through the (D-IDB bus), which is 16 bits wide.
The DSP1627 core’s Harvard architecture allows efficient memory utilization by supporting separate instruction
(XDB, XAB) and data (YDB, YAB) address spaces. The dual-port RAM (DPRAM) is connected to both address and
data buses XDB, YDB, XAB, and YAB, while the instruction ROM is only connected to the XDB and XAB memory
bus. The external memory interface provides a mechanism to access I/O devices and memories that are not part of
the core DSP1627 hardware.
For a complete description of the DSP1627 core and its peripherals, refer to the
DSP1627 Digital Signal Processor
Data Sheet. A brief description of the functionality of the DSP1627 is provided in the following section. Where nec-
essary, comments are made which reflect differences between the operation of the DSP1627 and the T8301.
Please refer to the DSP1627 data sheet for further explanation.
Figure 2. DSP/
ARM
Interface Block Diagram
RESETN
DSP_INT0N
DSP_MCSN
DSP_ICSN
DSP_RWN
DSP_A0—DSP_A11
DSP_D0—DSP_D15
RESETN
INT0N
M_CS
I_CSN
RWN
A0—A11
D0—D15
X_CSN
TRSTN
TDO
TDI
TC
TMS
INT1N
BIO0
BIO1
BIO2
BIO3
STCK
STO1
STI1
TMODEN0
TMODEN1
TMODEN2
DO1
DI1
IOCK
IOLD
SYNC
SPKDRV1A
SPKDRV1B
AINCP
AINCN
SPKDRV2A
SPKDRV2B
AINAN
AOUTA
CKI1
CKI2
CKO
CK8KHZ
CK2MHZ
DSP
ARM
BOUNDARY
SCAN
AND/OR
JTAG
OPTIONAL
(MEMORY) DEVICE
ON 12K Y DATA
BUS
TEST MODE
SELECT PINS
ATE ANALOG
TEST PINS
OPTIONAL
BIT
INPUT
OUTPUT
OPTIONAL
EXTERNAL
SERIAL
CODEC
SPEAKERPHONE
SPEAKER AND
MIC
HANDSET
SPEAKER AND
MIC
HEADSET SPEAKER
X = LEAVE OPEN IF
UNUSED
12.288 MHz CLOCK
SOURCE
OPTIONAL
CLOCK
RESOURCES
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| T8302 | T8302 Internet Protocol Telephone Advanced RISC Machine (ARM) Ethernet QoS Using IEEE 802.1q |
| T8502 | T8502 and T8503 Dual PCM Codecs with Filters |
| T8503 | T8502 and T8503 Dual PCM Codecs with Filters |
| T8531A | T8531A/8532 Multichannel Programmable Codec Chip Set |
| T8531 | T8502 and T8503 Dual PCM Codecs with Filters |
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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