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參數(shù)資料
| 型號(hào)： | TIGER560 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | USB Controller for Low Cost VoIP solutions |
| 中文描述： | USB控制器的低成本VoIP解決方案 |
| 文件頁數(shù)： | 14/37頁 |
| 文件大小： | 449K |
| 代理商： | TIGER560 |
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Tiger560
Advance Information
Revision 1.1 released on 2/20/01
Page 14
USB vendor and product I.D.s
The USB vendor and product I.D.s are set by pull-up and pull down resistors on the following
pins.
Vendor I.D. bits 0 – 7 on SRAM data bus SDA0 – SDA7
Vendor I.D. bits 8 – 15 on PIB data bus HD0 – HD7
Product I.D. bits 0 – 14 on SRAM address bus SAD0 – SDA14
Product I.D. bit 15 on PIB address HA0
On reset the inputs are read into internal registers, it is important to ensure that peripheral
devices connected to these inputs tri-state their outputs on reset.
ProductID[15:14]
00: Video only USB device descriptor table
01: Audio only USB device descriptor table
10: Video + Audio USB device descriptor table
ProductID[13:12]
00: max power 500 ma
01: max power 400 ma
10: max power 300 ma
11: max power 250 ma
ProductID[11]
0: No USB wake up function support
1: Support USB wake up function
ProductID[10]
0: Audio data from serial port audio codec channel number 0
1: Audio data from serial port audio codec channel number 1
ProductID[9]
0: Audio data shift direction MSB first
1: Audio data shift direction LSB first
ProductID[8]
0: Normal Audio data clock input
1: Inverted Audio data clock input
ProductID[7:6]
00: no change
01: Double Audio data clock input with 30ns delay
10: Double Audio data clock input with 40ns delay
11: Double Audio data clock input with 50ns delay
ProductID[5]
0: AUX[2]/Suspend# output low active
1: AUX[2]/Suspend# output high active
ProductID[4]
0: Disable internal PLL, use 48Mhz crystal
1: Enable internal PLL, use 12Mhz crystal
ProductID[3]
0: Normal operation
1: Force serial port clock DCLK as input pad
ProductID[2]
0: Normal operation
1: Force serial port FSC as input pad
USB descriptor table – EPROM download
The Tiger560 can be programmed to download the USB descriptor table from EPROM
If Tiger560 set to use the descriptor table from EPROM, the product ID[15:2] is set to program the
internal function setting.
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