參數(shù)資料
型號(hào)： TMP320C6413GTS500
廠商： Texas Instruments, Inc.
元件分類： 數(shù)字信號(hào)處理
英文描述： Fixed-Point Digital Signal Processors
中文描述： 定點(diǎn)數(shù)字信號(hào)處理器
文件頁數(shù)： 76/140頁
文件大?。?/td> 1958K
代理商： TMP320C6413GTS500
Multichannel Audio Serial Port (McASP) Peripheral
76
April 2004
Revised May 2005
SPRS247E
4.3
Multichannel Audio Serial Port (McASP) Peripheral
The TMS320C6413/C6410 device includes two multichannel audio serial port (McASP) interface peripheral
(McASP0 and McASP1). On the C6413/C6410 device the McASP1 peripheral pins are muxed with the HPI
peripheral pins. By default, the HPI peripheral pin functions are enabled. For the C6413/C6410 device
McASP1 is a standalone peripheral, not muxed. For more detailed information on the C6413/C6410 device
pin muxing, see the Device Configurations section of this data sheet.
The McASP is a serial port optimized for the needs of multichannel audio applications.
The McASP consists of a transmit and receive section. These sections can operate completely independently
with different data formats, separate master clocks, bit clocks, and frame syncs or alternatively, the transmit
and receive sections may be synchronized. The McASP module also includes a pool of 16 shift registers that
may be configured to operate as either transmit data, receive data, or general-purpose I/O (GPIO).
The transmit section of the McASP can transmit data in either a time-division-multiplexed (TDM) synchronous
serial format or in a digital audio interface (DIT) format where the bit stream is encoded for S/PDIF, AES-3,
IEC-60958, CP-430 transmission. The receive section of the McASP supports the TDM synchronous serial
format.
The McASP can support one transmit data format (either a TDM format or DIT format) and one receive format
at a time. All transmit shift registers use the same format and all receive shift registers use the same format.
However, the transmit and receive formats need not be the same.
Both the transmit and receive sections of the McASP also support burst mode which is useful for non-audio
data (for example, passing control information between two DSPs).
The McASP peripheral has additional capability for flexible clock generation, and error detection/handling, as
well as error management.
For more detailed information on and the functionality of the McASP peripheral, see the
TMS320C6000 DSP
Multichannel Audio Serial Port (McASP) Reference Guide
(literature number SPRU041).
4.3.1
McASP Block Diagram
Figure 4
2 illustrates the major blocks along with external signals of the TMS320C6413/C6410 McASP
peripheral; and shows the 6 serial data [AXRx] pins. The McASP also includes full general-purpose I/O (GPIO)
control, so any pins not needed for serial transfers can be used for general-purpose I/O.
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