TNETV2685FIBZUT7 datasheet(154/191 Pages) TI1

154 / 191 page

TMS320DM647

TMS320DM648

SPRS372H – MAY 2007 – REVISED APRIL 2012

www.ti.com

6.18 Multichannel Audio Serial Port (McASP)

The McASP functions as a general-purpose audio serial port optimized for the needs of multichannel

audio applications. The McASP is useful for time-division multiplexed (TDM) stream, Inter-Integrated

Sound (I2S) protocols, and intercomponent digital audio interface transmission (DIT).

6.18.1 McASP Device-Specific Information

The device includes one multichannel audio serial port (McASP) interface peripheral. 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 or receive data.

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

detailed

information

and

the

functionality

the

McASP

peripheral,

see

the

TMS320DM647/DM648 Multichannel Audio Serial Port (McASP) User's Guide (literature number

SPRUEL1).

6.18.1.1 McASP Block Diagram

Figure 6-48 illustrates the major blocks along with external signals of the McASP peripheral; and shows

the 10 serial data [AXR] pins.

154

Peripheral Information and Electrical Specifications

Submit Documentation Feedback

Product Folder Link(s): TMS320DM647 TMS320DM648

TNETV2685FIBZUT7 数据表(PDF) 154 Page - Texas Instruments

TNETV2685FIBZUT7 数据表(HTML) 154 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载