 |
数据搜索系统，热门电子元器件搜索 |
|
|
数据搜索系统，热门电子元器件搜索 |
|
TUSB3200CPAH 数据表(PDF) 34 Page - Texas Instruments |
|
|
|||||||||||||||||||||||||||||
TUSB3200CPAH 数据表(HTML) 34 Page - Texas Instruments |
|
|
34 / 93 page  2–18 the USB endpoint data buffers and the CODEC port interface is controlled by one or more of the DMA channels. Remember that each DMA channel can be assigned to one USB isochronous endpoint. The source and/or destination of the command/status address and data values is the MCU. The features of the CODEC port interface that can be configured are: • The mode of operation • The number of time slots per CODEC frame • The number of serial clock cycles for slot 0 • The number of serial clock cycles for all slots other than slot 0 • The number of valid data bits per audio data time slot • The time slots to be used for command/status address and data • The serial clock (CSCLK) frequency in relation to the CODEC master clock (MCLK) frequency • The source of the serial clock signal; internally generated or an input from the CODEC device • The source of the CODEC master clock signal used to generate the internal serial clock signal; internally generated by the ACG or an input to the TUSB3200 device • The polarity, duration, and direction of the CODEC frame sync signal • The relationship between the CODEC frame sync signal and the serial clock signal • The relationship between the CODEC frame sync signal and the serial data signals • The relationship between the serial clock signal and the serial data signals • The use of zero padding or a 3-state level for unused time slots and/or bits • The byte ordering to be used 2.2.13.1 Audio CODEC (AC) ’97 1.0 Mode of Operation In AC ’97 1.0 mode, the CODEC port interface can be configured as an AC link serial interface to the AC ’97 CODEC device. Refer to the Audio CODEC ’97 Specification Revision 1.03 for additional information. The AC Link serial interface is a time division multiplexed (TDM) slot based serial interface that is used to transfer both audio data and command/status data between the TUSB3200 IC and the CODEC device. Table 2–3. Terminal Assignments for CODEC Port Interface AC ’97 1.0 Mode TERMINAL AC ’97 Version 1.0 NO. NAME MODE 2 35 CSYNC SYNC O 34 CSCLK BIT_CLK I 36 CDATO SD_OUT O 38 CDATI SD_IN I 39 CRESET RESET O 40 CSCHNE NC O In this mode, the CODEC port interface is configured as a bi-directional full duplex serial interface with a fixed rate of 48 kHz. Each 48-kHz frame is divided into 13 time slots, with the use of each time slot predefined by the Audio CODEC ’97 Specification. Each time slot is 20 serial clock cycles in length except for time slot 0, which is only 16 serial clock cycles. The serial clock, which is referred to as the BIT_CLK for AC ’97 modes, is set to 12.288 MHz. Based on the length of each slot, there is a total of 256 serial clock cycles per frame at a frequency of 12.288 MHz. As a result the frame frequency is 48 kHz. For the AC ’97 modes, the BIT_CLK is input to the TUSB3200 device from the CODEC. The BIT_CLK is generated by the CODEC from the master clock (MCLK) input. The CODEC MCLK input, which can |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
