 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
IDT82V2054DAG Datasheet(PDF) 5 Page - Integrated Device Technology |
|
||||||||||||||||||||||||||||||
IDT82V2054DAG Datasheet(HTML) 5 Page - Integrated Device Technology |
|
|
5 / 56 page  Pin Description 5 September 22, 2005 IDT82V2054 QUAD E1 SHORT HAUL LINE INTERFACE UNIT TCLK0 TCLK1 TCLK2 TCLK3 I 36 29 81 74 N1 L1 L14 N14 TCLKn: Transmit Clock for Channel 0~3 The clock of 2.048 MHz for transmit is input on this pin. The transmit data at TDn/TDPn or TDNn is sam- pled into the device on the falling edges of TCLKn. Pulling TCLKn high for more than 16 MCLK cycles, the corresponding transmitter is set in Transmit All Ones (TAOS) state (when MCLK is clocked). In TAOS state, the TAOS generator adopts MCLK as the clock reference. If TCLKn is low, the corresponding transmit channel is set into power down state, while driver output ports become high-Z. Different combinations of TCLKn and MCLK result in different transmit mode. It is summarized as the fol- lows: RD0/RDP0 RD1/RDP1 RD2/RDP2 RD3/RDP3 CV0/RDN0 CV1/RDN1 CV2/RDN2 CV3/RDN3 O High-Z 40 33 77 70 41 34 76 69 P2 M2 M13 P13 P3 M3 M12 P12 RDn: Receive Data for Channel 0~3 In Single Rail mode, the received NRZ data is output on this pin. The data is decoded by AMI or HDB3 line code rule. CVn: Code Violation for Channel 0~3 In Single Rail mode, the bipolar violation, code violation and excessive zeros will be reported by driving pin CVn high for a full clock cycle. However, only bipolar violation is indicated when AMI decoder is selected. RDPn/RDNn: Positive/Negative Receive Data for Channel 0~3 In Dual Rail Mode with clock recovery, these pins output the NRZ data. A high signal on RDPn indicates the receipt of a positive pulse on RTIPn/RRINGn while a high signal on RDNn indicates the receipt of a negative pulse on RTIPn/RRINGn. The output data at RDn or RDPn/RDNn are clocked out on the falling edges of RCLK when the CLKE input is low, or are clocked out on the rising edges of RCLK when CLKE is high. In Dual Rail Mode without clock recovery, these pins output the raw RZ sliced data. In this data recovery mode, the active polarity of RDPn/RDNn is determined by pin CLKE. When pin CLKE is low, RDPn/RDNn is active low. When pin CLKE is high, RDPn/RDNn is active high. In hardware mode, RDn or RDPn/RDNn will remain active during LOS. In host mode, these pins will either remain active or insert alarm indication signal (AIS) into the receive path, determined by bit AISE in regis- ter GCF. RDn or RDPn/RDNn is set into high-Z when the corresponding receiver is powered down. Table-1 Pin Description (Continued) Name Type Pin No. Description TQFP144 PBGA160 MCLK TCLKn Transmit Mode Clocked Clocked Normal operation Clocked High ( ≥ 16 MCLK) Transmit All Ones (TAOS) signals to the line side in the corresponding transmit channel. Clocked Low ( ≥ 64 MCLK) The corresponding transmit channel is set into power down state. High/Low TCLK1 is clocked TCLKn is clocked Normal operation TCLKn is high ( ≥ 16 TCLK1) Transmit All Ones (TAOS) signals to the line side in the corresponding transmit channel. TCLKn is low ( ≥ 64 TCLK1) Corresponding transmit channel is set into power down state. The receive path is not affected by the status of TCLK1. When MCLK is high, all receive paths just slice the incoming data stream. When MCLK is low, all the receive paths are powered down. High/Low TCLK1 is unavail- able. All four transmitters (TTIPn & TRINGn) will be in high-Z. |
Similar Part No. - IDT82V2054DAG |
|
Similar Description - IDT82V2054DAG |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
