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參數(shù)資料
| 型號(hào)： | ZL50023QCC |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 路由/交換 |
| 英文描述： | Enhanced 4 K Digital Switch |
| 中文描述： | TELECOM, DIGITAL TIME SWITCH, PQFP256 |
| 封裝： | 28 X 28 MM, 1.40 MM HEIGHT, MS-026BJC, LQFP-256 |
| 文件頁數(shù)： | 22/80頁 |
| 文件大?。?/td> | 1341K |
| 代理商： | ZL50023QCC |
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ZL50023
Data Sheet
22
Zarlink Semiconductor Inc.
8.0 Data Input Delay and Data Output Advancement
Various registers are provided to adjust the input delay and output advancement for each input and output data
stream. The input bit delay and output bit advancement can vary from 0 to 7 bits for each individual stream.
If input delay of less than a bit is desired, different sampling points can be used to handle the adjustments. The
sampling point can vary from 1/4 to 4/4 with a 1/4-bit increment for all input streams, unless the stream is operating
at 16.384 Mbps, in which case the fractional bit delay has a 1/2-bit increment. By default, the sampling point is set
to the 3/4-bit location for non-16.384 Mbps data rates and the 1/2-bit location for the 16.384 Mbps data rate.
The fractional output bit advancement can vary from 0 to 3/4 bits, again with a 1/4-bit increment unless the output
stream is operating at 16.384 Mbps, in which case the output bit advancement has a 1/2-bit increment from 0 to 1/2
bit. By default, there is 0 output bit advancement.
Although input delay or output advancement features are available on streams which are operating in bi-directional
mode it is not recommended, as it can easily cause bus contention. If users require this function, special attention
must be given to the timing to ensure contention is minimized.
8.1 Input Bit Delay Programming
The input bit delay programming feature provides users with the flexibility of handling different wire delays when
designing with source streams for different devices.
By default, all input streams have zero bit delay, such that bit 7 is the first bit that appears after the input frame
boundary (assuming ST-BUS formatting). The input delay is enabled by STIN[n]BD2-0 (bits 8 - 6) in the Stream
Input Control Register 0 - 31 (SICR0 - 31) as described in Table 25 on page 46. The input bit delay can range from
0 to 7 bits.
Figure 11 - Input Bit Delay Timing Diagram (ST-BUS)
FPi
STi[n]
Bit Delay = 0
(Default)
Channel 0
7
Channel 1
6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2
Channel 2
2 1 0
4 3
Last Channel
STi[n]
Bit Delay = 1
Channel 0
6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3
7
Channel 1
Channel 2
2 1 0
4 3
Last Channel
Bit Delay = 1
5
Note: Last Channel = 31, 63, 127 and 255 for 2.048, 4.096, and 8.192 and 16.384 Mbps modes respectively.
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相關(guān)代理商/技術(shù)參數(shù) |
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| ZL50023QCG1 | 制造商:Microsemi Corporation 功能描述:PB FREE 4K WITH RATE CONVERSION 制造商:Microsemi Corporation 功能描述:PB FREE 4K WITH RATE CONVERSION - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TDM SWITCH 4K-CH ENH 256LQFP 制造商:Microsemi Corporation 功能描述:IC TDM SWITCH 4K-CH ENH 256LQFP |
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| ZL50030_06 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Flexible 4 K x 2 K Channel Digital Switch with H.110 Interface and 1 K x 1 K Local Switch |
| ZL50030GAC | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 4K X 2K/1K X 1K 3.3V/5V 220BGA - Trays 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 4K X 2K/1K X 1K 3.3V/5V 220BGA - Trays |
| ZL50030GAG2 | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 4K X 2K/1K X 1K 3.3V/5V 220BGA - Trays 制造商:Microsemi Corporation 功能描述:PB FREE FLEX 4KX2K DX+H.110 I/FACE+1K SW 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 4K X 2K/1K X 1K 3.3V/5V 220BGA - Trays 制造商:Zarlink Semiconductor Inc 功能描述:PB FREE FLEX 4KX2K DX+H.110 I/FACE+1K SW |
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