REV. 1.0.1 NOTE:" />
參數(shù)資料
型號(hào): XRT94L31IB-L
廠商: Exar Corporation
文件頁數(shù): 29/133頁
文件大小: 0K
描述: IC MAPPER DS3/E3/STS-1 504TBGA
標(biāo)準(zhǔn)包裝: 24
應(yīng)用: 網(wǎng)絡(luò)切換
接口: 總線
電源電壓: 3.14 V ~ 3.47 V
封裝/外殼: 504-LBGA
供應(yīng)商設(shè)備封裝: 504-TBGA(35x35)
包裝: 托盤
安裝類型: 表面貼裝
XRT94L31
124
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
REV. 1.0.1
NOTE: The values for t27 and t28 can be found in
1.11
RECEIVE POH OVERHEAD OUTPUT PORT
The Receive POH Overhead Output port is used to extract out the values of the POH bytes within the
incoming STS-3/STM-1 data-stream. All of the Receive POH Overhead Output port signals are updated upon
the falling edge of RxPOHClk. The timing wave-form and information for the Receive POH Overhead Output
Port is presented below.
FIGURE 27. ILLUSTRATION OF THE TIMING WAVE-FORM OF THE RECEIVE TOH OVERHEAD OUTPUT PORT
TABLE 28: TIMING INFORMATION FOR THE RECEIVE TOH OVERHEAD OUTPUT PORT
SYMBOL
DESCRIPTION
MIN.
TYP.
MAX.
t27
Falling edge of RxTOHClk to rising edge of RxTOHFrame and RxTOHValid
-0.5ns
0.4ns
t28
Falling edge of RxTOHClk to RxTOH output delay
-0.5ns
0.5ns
RxTOH
RxTOHClk
RxTOHFrame
RxTOHValid
t27
t28
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