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IDT82V2088 Datasheet(PDF) 11 Page - Integrated Device Technology |
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IDT82V2088 Datasheet(HTML) 11 Page - Integrated Device Technology |
11 / 78 page 11 INDUSTRIAL TEMPERATURE RANGES OCTAL CHANNEL T1/E1/J1 LONG HAUL/SHORT HAUL LINE INTERFACE UNIT Transmit and Receive Digital Data Interface TD1/TDP1 TD2/TDP2 TD3/TDP3 TD4/TDP4 TD5/TDP5 TD6/TDP6 TD7/TDP7 TD8/TDP8 TDN1 TDN2 TDN3 TDN4 TDN5 TDN6 TDN7 TDN8 Input 155 149 143 137 127 121 115 109 154 148 142 136 126 120 114 108 B15 D15 E15 G15 J15 L15 N15 R16 C14 D14 F13 G14 J14 L14 M13 P15 TDn: Transmit Data for Channel 1~8 In Single Rail Mode, the NRZ data to be transmitted is input on these pins. Data on TDn is sampled into the device on the active edge of TCLKn. The active edge of TCLKn is selected by the TCLK_SEL bit (TCF0, 02H...). Data is encoded by AMI, HDB3 or B8ZS line code rules before being transmitted to the line. In this mode, TDNn should be connected to ground. TDPn/TDNn: Positive/Negative Transmit Data for Channel 1~8 In Dual Rail Mode, the NRZ data to be transmitted is input on these pins. Data on TDPn/TDNn is sam- pled into the device on the active edge of TCLKn. The active edge of the TCLKn is selected by the TCLK_SEL bit (TCF0, 02H...) The line code in Dual Rail Mode is as follows: TCLK1 TCLK2 TCLK3 TCLK4 TCLK5 TCLK6 TCLK7 TCLK8 Input 156 150 144 138 129 122 116 110 A15 C16 E16 G16 J16 L16 N16 T16 TCLKn: Transmit Clock for Channel 1~8 These pins input 1.544 MHz for T1/J1 mode or 2.048 MHz for E1 mode transmit clock. The transmit data on TDn/TDPn or TDNn is sampled into the device on the active edge of TCLKn. If TCLKn is missing1 and the TCLKn missing interrupt is not masked, an interrupt will be generated. RD1/RDP1 RD2/RDP2 RD3/RDP3 RD4/RDP4 RD5/RDP5 RD6/RDP6 RD7/RDP7 RD8/RDP8 CV1/RDN1 CV2/RDN2 CV3/RDN3 CV4/RDN4 CV5/RDN5 CV6/RDN6 CV7/RDN7 CV8/RDN8 Output 152 146 140 134 124 118 112 106 151 145 139 132 123 117 111 105 B16 E14 F15 H14 K14 M15 N14 P14 C15 E13 F14 H13 K13 M14 N13 R15 RDn: Receive Data for Channel 1~8 In Single Rail Mode, the NRZ receive data is output on these pins. Data is decoded according to AMI, HDB3 or B8ZS line code rules. The active level on RDn pin is selected by the RD_INV bit (RCF0, 07H...). CVn: Code Violation for Channel 1~8 In Single Rail Mode, the BPV/CV errors in received data streams will be reported by driving pin CVn to high level for a full clock cycle. The B8ZS/HDB3 line code violation can be indicated when the B8ZS/ HDB3 decoder is enabled. When AMI decoder is selected, the bipolar violation can be indicated. RDPn/RDNn: Positive/Negative Receive Data for Channel 1~8 In Dual Rail Mode with Clock & Data Recovery (CDR), these pins output the NRZ data with the recov- ered clock. An active level on RDPn indicates the receipt of a positive pulse on RTIPn/RRINGn while an active level on RDNn indicates the receipt of a negative pulse on RTIPn/RRINGn. The active level on RDPn/RDNn is selected by the RD_INV bit (RCF0, 07H...). When CDR is disabled, these pins directly output the raw RZ sliced data. The output data on RDn and RDPn/RDNn is updated on the active edge of RCLKn. RCLK1 RCLK2 RCLK3 RCLK4 RCLK5 RCLK6 RCLK7 RCLK8 Output 153 147 141 135 125 119 113 107 A16 D16 F16 H15 K15 M16 P16 T15 RCLKn: Receive Clock for Channel 1~8 These pins output 1.544 MHz for T1/J1 mode or 2.048 MHz for E1 mode receive clock. Under LOS conditions, if AISE bit (MAINT0, 0AH...) is ‘1’, RCLKn is derived from MCLK. In clock recovery mode, these pins provide the clock recovered from the signal received on RTIPn/ RRINGn. The receive data (RDn in Single Rail Mode or RDPn/RDNn in Dual Rail Mode) is updated on the active edge of RCLKn. The active edge is selected by the RCLK_SEL bit (RCF0, 07H...). If clock recovery is bypassed, RCLKn is the exclusive OR(XOR) output of the Dual Rail sliced data RDPn and RDNn. This signal can be used in the applications with external clock recovery circuitry. Table-1 Pin Description (Continued) Name Type Pin No. Description PQFP208 PBGA208 TDPn TDNn Output Pulse 0 0 Space 0 1 Positive Pulse 1 0 Negative Pulse 1 1 Space Notes: 1. TCLKn missing: the state of TCLKn continues to be high level or low level over 70 clock cycles. |
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