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參數(shù)資料
| 型號(hào)： | TMS320C6713BGDPA200 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 數(shù)字信號(hào)處理 |
| 英文描述： | FLOATING-POINT DIGITAL SIGNAL PROCESSORS |
| 中文描述： | 浮點(diǎn)數(shù)字信號(hào)處理器 |
| 文件頁(yè)數(shù)： | 84/150頁(yè) |
| 文件大?。?/td> | 2039K |
| 代理商： | TMS320C6713BGDPA200 |
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TMS320C6713, TMS320C6713B
FLOATING-POINT DIGITAL SIGNAL PROCESSORS
SPRS186I
DECEMBER 2001
REVISED MAY 2004
84
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251
1443
multichannel audio serial port (McASP) peripherals (continued)
multichannel time division multiplexed (TDM) synchronous transfer mode
The McASP supports a multichannel, time-division-multiplexed (TDM) synchronous transfer mode for both
transmit and receive. Within this transfer mode, a wide variety of serial data formats are supported, including
formats compatible with devices using the Inter-Integrated Sound (IIS) protocol.
TDM synchronous transfer mode is typically used when communicating between integrated circuits such as
between a DSP and one or more ADC, DAC, CODEC, or S/PDIF receiver devices. In multichannel applications,
it is typical to find several devices operating synchronized with each other. For example, to provide six analog
outputs, three stereo DAC devices would be driven with the same bit clock and frame sync, but each stereo DAC
would use a different McASP serial data pin carrying stereo data (2 TDM time slots, left and right).
The TDM synchronous serial transfer mode utilizes several control signals and one or more serial data signals:
A bit clock signal (ACLKX for transmit, ACKLR for receive)
A frame sync signal (AFSX for transmit, AFSR for receive)
An (Optional) high frequency master clock (AHCLKX for transmit, AHCLKR for receive) from which the bit
clock is derived
One or more serial data pins (AXR for transmit and for receive).
Except for the optional high-frequency master clock, all of the signals in the TDM synchronous serial transfer
mode protocol are synchronous to the bit clocks (ACLKX and ACLKR).
In the TDM synchronous transfer mode, the McASP continually transmits and receives data periodically (since
audio ADCs and DACs operate at a fixed-data rate). The data is organized into frames, and the beginning of
a frame is marked by a frame sync pulse on the AFSX, AFSR pin.
In a typical audio system, one frame is transferred per sample period. To support multiple channels, the choices
are to either include more time slots per frame (and therefore operate with a higher bit clock) or to keep the bit
clock period constant and use additional data pins to transfer the same number of channels. For example, a
particular six-channel DAC might require three McASP serial data pins; transferring two channels of data on
each serial data pin during each sample period (frame). Another similar DAC may be designed to use only a
single McASP serial data pin, but clocked three times faster and transferring six channels of data per sample
period. The McASP is flexible enough to support either type of DAC but a transmitter cannot be configured to
do both at the same time.
For multiprocessor applications, the McASP supports any number of time slots per frame (between 2 and 32),
and includes the ability to “disable” transfers during specific time slots.
In addition, to support of S/PDIF, AES-3, IEC-60958, CP-430 receivers chips whose natural block (McASP
frame) size is 384 samples; the McASP receiver supports a 384 time slot mode. The advantage to using the
384 time slot mode is that interrupts may be generated synchronous to the S/PDIF, AES-3, IEC-60958, CP-430
receivers, for example the “l(fā)ast slot” interrupt.
burst transfer mode
The McASP also supports a burst transfer mode, which is useful for non-audio data (for example, passing
control information between two DSPs). Burst transfer mode uses a synchronous serial format similar to TDM,
except the frame sync is generated for each data word transferred. In addition, frame sync generation is not
periodic or time-driven as in TDM mode but rather data-driven.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TMS320C6713BGDP-C20 | 制造商:Texas Instruments 功能描述: |
| TMS320C6713BPYP167 | 制造商:TI 功能描述:_ |
| TMS320C6713BPYP200 | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Floating-Pt Dig Sig Processors RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| TMS320C6713BPYP225 | 制造商:Texas Instruments 功能描述: |
| TMS320C6713BZDP225 | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Floating-Pt Dig Sig Processors RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
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