參數(shù)資料
型號： TMS320DM355_07
廠商： Texas Instruments, Inc.
英文描述： Digital Media System-on-Chip (DMSoC)
中文描述： 數(shù)字媒體系統(tǒng)芯片（DMSoC）
文件頁數(shù)： 137/158頁
文件大小： 1319K
代理商： TMS320DM355_07
www.ti.com
P
5.14 Audio Serial Port (ASP)
TMS320DM355
Digital Media System-on-Chip (DMSoC)
SPRS463B–SEPTEMBER 2007–REVISED OCTOBER 2007
DM355 includes two separate ASP controllers. The primary use for the audio serial port (ASP) is for audio
interface purposes. The primary audio modes that are supported by the ASP are the AC97 and IIS modes.
In addition to the primary audio modes, the ASP supports general serial port receive and transmit
operation, but is not intended to be used as a high-speed interface. The ASP is backward compatible with
other TI ASPs. The ASP supports the following features:
Full-duplex communication
Double-buffered data registers, which allow a continuous data stream
Independent framing and clocking for receive and transmit
External shift clock generation or an internal programmable frequency shift clock
Double-buffered data registers, which allow a continuous data stream
Independent framing and clocking for receive and transmit
Direct interface to industry-standard codecs, analog interface chips (AICs), and other serially
connected analog-to-digital (A/D) and digital-to-analog (D/A) devices
Direct interface to AC97 compliant devices (the necessary multiphase frame synchronization capability
is provided)
Direct interface to IIS compliant devices
A wide selection of data sizes, including 8, 12, 16, 20, 24, and 32 bits
μ
-Law and A-Law companding
8-bit data transfers with the option of LSB or MSB first
Programmable polarity for both frame synchronization and data clocks
Highly programmable internal clock and frame generation
For more detailed information on the ASP peripheral, see the
Documentation Support
section for the
Audio Serial Port (ASP) Reference Guide.
Submit Documentation Feedback
DM355 Peripheral Information and Electrical Specifications
137
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