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C5C5EDELTA-RM/D 数据表(PDF) 40 Page - NXP Semiconductors |
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C5C5EDELTA-RM/D 数据表(HTML) 40 Page - NXP Semiconductors |
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40 / 114 page ![]() 40 CHAPTER 2: SIGNAL DESCRIPTIONS C SONET OC-12 Transceiver Interface Configuration SONET Optical Carrier (OC) 12 is implemented by using one cluster of CPs. At any time, a CP within a cluster spends half its time performing receive functions, and the other half performing transmit functions. Table 14 shows a CP Cluster configured for one OC-12 interface. Table 14 OC-12 Signals Example SIGNAL NAME* PIN #† TOTAL TYPE I/O LABEL SIGNAL DESCRIPTION CPn_0 Table 7 1 LVTTL O PD TCLK Deskewed Transmit Clock (77.76MHz). This clock is used to synchronize the transmit data. CPn_1 Table 7 1 LVTTL I PU TCLKI Transceiver Transmit Clock. This clock sets the frequency of the transmit data and is typically sourced by the PHY chip. CPn_2 Table 7 1 LVTTL O PD TXD(0) Transmit Data (byte-wide data, least significant bit) CPn_3 Table 7 1 LVTTL OPU TXD(1) Transmit Data CPn_4 Table 7 1 LVTTL O PD TXD(2) Transmit Data CPn_5 Table 7 1 LVTTL O PU TXD(3) Transmit Data CPn_6 Table 7 1 LVTTL OPU 00F Out of Frame CPn+1_0 Table 7 1 nc nc PD nc nc CPn+1_1 Table 7 1 nc nc PU nc nc CPn+1_2 Table 7 1 LVTTL OPD TXD(4) Transmit Data CPn+1_3 Table 7 1 LVTTL O PU TXD(5) Transmit Data CPn+1_4 Table 7 1 LVTTL O PD TXD(6) Transmit Data CPn+1_5 Table 7 1 LVTTL OPU TXD(7) Transmit Data (byte-wide data, most significant bit) CPn+1_6 Table 7 1 nc nc PU nc nc CPn+2_0 Table 7 1 nc nc PD nc nc CPn+2_1 Table 7 1 LVTTL IPU RCLK Receive Clock (77.76MHz) CPn+2_2 Table 7 1 LVTTL I PD RXD(0) Receive Data (byte-wide receive data, least significant bit) CPn+2_3 Table 7 1 LVTTL I PU RXD(1) Receive Data CPn+2_4 Table 7 1 LVTTL IPD RXD(2) Receive Data CPn+2_5 Table 7 1 LVTTL I PU RXD(3) Receive Data CPn+2_6 Table 7 1 LVTTL I PU FP Frame Synchronization Pulse. This is valid during the third A2 of the receive SONET frame. Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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