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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PM7375-SC датащи(PDF) 32 Page - PMC-Sierra, Inc |
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PM7375-SC датащи(HTML) 32 Page - PMC-Sierra, Inc |
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32 / 430 page  PM7375 LASAR-155 DATA SHEET PMC-931127 ISSUE 6 LOCAL ATM SAR & PHYSICAL LAYER PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 16 TCP/ TLDCLK Output 112 The TGFC/TLDCLK output is a dual function output controlled using the UNI_POTS bit in the LASAR-155 Master Configuration register. When the UNI_POTS bit is low, the transmit cell pulse (TCP) indicates where the valid TGFC serial bits are expected. If TCP is asserted high, the most significant GFC bit is expected in the subsequent TCLK period. TCP pulses high for one TCLK for every transmitted cell. TCP is updated on the rising edge of TCLK. When the UNI_POTS bit is high, the transmit line DCC clock (TLDCLK) is a 576 kHz clock used to sample the TLD input. TLDCLK is generated by gapping a 2.16 MHz clock. XOFF Input 114 The transmit off (XOFF) signal can be used to control the transmission of user cells. When XOFF is asserted high, the LASAR-155 is prohibited from transmitting user cells. Under this operating condition, the LASAR-155 can only transmit Idle/Unassigned cells. When XOFF is low, the LASAR-155 operates normally. XOFF is sampled on the rising edge of TCLK. |
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