PM5355 S/UNI-622 Errata ISSUE 7 SUNI-622 DATASHEET ERRATA 10 :22 :42 PM PMC-950217 ep tem be r, 20 02 PM5355 ,1 9S S/UNI-622 DATASHEET Do wn loa de db yV inv ef uo fo liv ett io nT hu rsd ay ERRATA PMC-Sierra, Inc Issue 7: March, 1998 105-8555 Baxter Place, Burnaby, BC Canada V5A 4V7 604 415 6000 PM5355 S/UNI-622 Errata ISSUE 7 SUNI-622 DATASHEET ERRATA :42 PM PMC-950217 :22 TABLE OF CONTENTS ISSUE 7 ERRATA........................................................................................ 1 2. TIMING PARAMETER CHANGES .............................................................. 1 2.1. Minimum Prop Delays for LAIS, LOP, & PRDI page 221...................... 1 2.2. TGFC and TCP Parameters page 233.................................................. 2 3. REGISTER CHANGES ................................................................................ 2 3.1. Register 0x2C Page 105 ................................................................... 2 4. PIN DESCRIPTION CHANGES................................................................... 4 4.1. Pin 74 TFP Page 13......................................................................... 4 4.2. Pin 68 TCP Page 27 ......................................................................... 4 4.3. Pin 62 TGFC Page 27 ....................................................................... 4 5. CLARIFICATION OF OPERATION.............................................................. 6 5.1. TCA May De-assert Early.................................................................. 6 5.2. Cells Can Be Retransmitted .............................................................. 6 5.3. S1 (Z1) Byte Synchronization Message ............................................ 6 5.4. RX FIFO Must Not Be Gapped During Last Two Words of a Cell ..... 6 5.5 Page 188: Changes to Bit Error Rate Monitor Settings.................... 6 5.6 Page 149: STS-3c Application Information for the FIFORST bit. ..... 7 6. CONTACTING PMC-SIERRA...................................................................... 8 Do wn loa de db yV inv ef uo fo liv ett io nT hu rsd ay ,1 9S ep tem be r, 20 02 10 1. ______________________________________________________________________________________________ i PM5355 S/UNI-622 Errata ISSUE 7 SUNI-622 DATASHEET ERRATA PM PMC-950217 :42 ISSUE 7 ERRATA :22 1. TIMING PARAMETER CHANGES 20 ep 2. tem be r, A change bar indicates a section that has been revised. 02 10 This Issue 7 contains errata applied to the PMC-941027 Issue 2 datasheet. The Issue 2 datasheet and Issue 7 errata supersede all prior editions and versions. ,1 9S 2.1. Minimum Prop Delays for LAIS, LOP, & PRDI page 221 rsd ay Specification of the minimum propagation delays for LAIS, LOP, and PRDI have been removed. nT hu Receive Alarm Output (Fig. 42) ett io Symbol Description tPGROCLK PICLK High to GROCLK Edge Min 3 Max 25 Units ns 3 30 ns 3 30 ns 3 30 ns PICLK High to OOF Valid tPLOF PICLK High to LOF Valid tPLOS PICLK High to LOS Valid tPLAIS PICLK High to LAIS Valid 3 30 ns tPLRDI PICLK High to LRDI Valid 3 30 ns tPLOP GROCLK Low to LOP Valid 3 25 ns tPPAIS GROCLK Low to PAIS Valid 3 25 ns PPRDI GROCLK Low to PRDI Valid 3 25 ns tPLCD GROCLK Low to LCD Valid 3 25 ns Do wn loa de db yV inv ef uo fo liv tPOOF ______________________________________________________________________________________________ 1 PM5355 S/UNI-622 Errata ISSUE 7 SUNI-622 DATASHEET ERRATA PM PMC-950217 :22 :42 2.2. TGFC and TCP Parameters page 233 02 20 Transmit GFC Access (Fig. 48) Description GTOCLK Low to TCP Valid tSTGFC TGFC Set-up time to GTOCLK tHTGFC TGFC Hold time to GTOCLK Min 3 Max 20 Units ns 5 ns 1 ns ,1 9S ep tem be r, Symbol tPTCP ay REGISTER CHANGES Register 0x2C Page 105 nT 3.1. hu rsd 3. 10 Specification of all parameters for TGFC and TCP are removed. ett io This register is not supported. yV inv ef uo fo Function EZ1[7] EZ1[6] EZ1[5] EZ1[4] EZ1[3] EZ1[2] EZ1[1] EZ1[0] db Type R/W R/W R/W R/W R/W R/W R/W R/W Do wn loa de Bit Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 liv Register 0x2C: SSTB Expected Clock Synchronization Message Default 0 0 0 0 0 0 0 0 This register contains the expected clock synchronization message byte (Z1) in the receive stream. ______________________________________________________________________________________________ 2 PM5355 S/UNI-622 Errata ISSUE 7 SUNI-622 DATASHEET ERRATA PM PMC-950217 Do wn loa de db yV inv ef uo fo liv ett io nT hu rsd ay ,1 9S ep tem be r, 20 02 10 :22 :42 EZ1[7:0]: The EZ1[7] - EZ1[0] bits contain the expected clock synchronization message byte (Z1). EZ1[7:0] is compared with the clock synchronization message byte extracted from the receive stream. A clock synchronization message byte mismatch (CSMM) is declared if the accepted clock synchronization message byte differs from the expected clock synchronization message byte. If enabled, an interrupt is asserted upon declaration and removal of CSMM. ______________________________________________________________________________________________ 3 PM5355 S/UNI-622 Errata ISSUE 7 SUNI-622 DATASHEET ERRATA PM PMC-950217 :22 Pin 74 TFP Page 13 Input 74 The active high transmit frame pulse (TFP) signal is used to align the SONET/SDH transport frame generated by the S/UNI-622 device to a system reference. TFP should be brought high for a single GTOCLK period every 810 (STS-1), 2430 (STS-3c), 2430 (STS-12c) GTOCLK cycles, or a multiple thereof. TFP may must be tied low if such synchronization is not required. The offset between a pulse applied to the TFP input and the resultant FPOUT pulse is 18 TCLK periods in STS-1 mode, 26 TCLK periods in STS-3c mode and 81 TCLK periods in STS-12c mode. TFP is sampled on the rising edge of GTOCLK. 68 The transmit cell pulse (TCP) signal is provided to locate the most significant GFC bit (GFC[3]) of a cell's GFC field sourced on input TGFC. TCP pulses high for one GTOCLK period to identify the GTOCLK cycle before the cycle the GFC[3] bit is output on TGFC. TCP is updated on the falling edge of GTOCLK.This pin is reserved. io Output Pin 62 TGFC Page 27 Input Do wn loa de TGFC Reserved db 4.3. yV inv ef uo fo liv TCP Reserved nT Pin 68 TCP Page 27 ett 4.2. hu rsd ay ,1 9S ep tem be r, 20 TFP 10 4.1. :42 PIN DESCRIPTION CHANGES 02 4. 62 The transmit generic flow control (TGFC) input contains GFC bits that can be inserted into the GFC fields of transmitted cells (including idle/unassigned cells). Insertion is controlled using bits in the TACP Fixed Stuff/GFC register. TGFC is sampled on the rising edge of GTOCLK.This pin is reserved and must be tied to GND for proper operation of the S/UNI-622 ______________________________________________________________________________________________ 4 PM5355 S/UNI-622 Errata ISSUE 7 SUNI-622 DATASHEET ERRATA PM PMC-950217 TCA May De-assert Early 10 5.1. :42 CLARIFICATION OF OPERATION :22 5. Cells Can Be Retransmitted ep 5.2. tem be r, 20 02 The TCA signal may de-assert incorrectly. To avoid this problem the FIFORST bit in register 0x60 TACP Control/Status should be asserted after power-up or a hardware reset. A transmit FIFORST should be issued each time the TSOC changes boundaries. These boundary changes are identified by the TSOCI bit (bit 6 of the same register). ay ,1 9S It has been found that a glitch on TFCLK may cause the S/UNI-622 to transmit previously transmitted cells. If this situation arises it can be cleared with a TXFIFO reset. S1 (Z1) Byte Synchronization Message rsd 5.3. liv ett io nT hu The current GR-253-CORE (5.4.7.1) requires the byte validation to be done over 8 frames, instead of 5 frames as is done in the S/UNI-622. This, however, is still useful to be included, since it relieves the microprocessor from polling Reg. 0x0E, the Receive S1 (Z1) register every frame to validate the synchronization message. RX FIFO Must Not Be Gapped During Last Two Words of a Cell uo fo 5.4. yV inv ef Do not de-assert RRDENB during the second to last word (or byte) of a cell. It has been found that the removal of RRDENB during the second to last word (or byte) of a cell will result in the loss of the last word (or byte). Page 188: Changes to Bit Error Rate Monitor Settings db 5.5 Do wn loa de The recommended register settings for STS-1 mode should be as follows: BER Reg. 0x72 Reg. 0x73 Reg. 0x74 Reg. 0x75 10-4 A0 00 4F 00 10-5 B0 04 3E 00 10-6 E0 2E 3E 00 ______________________________________________________________________________________________ 5 PM5355 S/UNI-622 Errata ISSUE 7 SUNI-622 DATASHEET ERRATA Reg. 0x74 Reg. 0x75 10-4 34 00 4D 00 10-5 90 01 3E 00 10-6 A0 0F 3E 00 10-7 40 9C 3E 00 :22 Reg. 0x73 r, 20 02 10 Reg. 0x72 tem be BER :42 The recommended register settings for STS-3c mode should be as follows: PM PMC-950217 Reg. 0x72 Reg. 0x73 Reg. 0x74 Reg. 0x75 10-4 20 00 CC ,1 10-5 64 00 3E 10-6 E8 03 3E 10-7 10 27 io nT hu rsd ay 00 3E 00 00 00 Page 149: STS-3c Application Information for the FIFORST bit. uo 5.6 fo liv ett BER 9S ep The recommended register settings for STS-12c mode should be as follows: Do wn loa de db yV inv ef In STS-3c mode of operation, the FIFORST bit in register 0x60: “TACP Control/Status” initializes the transmit FIFO. For correction operation, a FIFORST should be issues at the end of each initialization cycle (ie. at the end of the reset routine). A transmit FIFORST should also be issued each time TSOC changes boundaries. Boundary changes are identified by TSOCI (bit 6). The FIFORST should be asserted for a minimum of 3.5us. (one cell period at 155Mbps). ______________________________________________________________________________________________ 6 PM5355 S/UNI-622 Errata ISSUE 7 SUNI-622 DATASHEET ERRATA PM PMC-950217 :42 CONTACTING PMC-SIERRA :22 6. tem be r, 20 02 10 PMC-Sierra, Inc. 105-8555 Baxter Place Burnaby, B.C. Canada V5A 4V7 Tel: 604-415-6000 Fax: 604-415-6206 9S ep Product Information: [email protected] Applications information: [email protected] World Wide Web: http://www.pmc-sierra.com Do wn loa de db yV inv ef uo fo liv ett io nT hu rsd ay ,1 Printed in Canada Seller will have no obligation or liability in respect of defects or damage caused by unauthorized use, mis-use, accident, external cause, installation error, or normal wear and tear. There are no warranties, representations or guarantees of any kind, either express or implied by law or custom, regarding the product or its performance, including those regarding quality, merchantability, fitness for purpose, condition, design, title, infringement of thirdparty rights, or conformance with sample. Seller shall not be responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon, the information contained in this document. In no event will Seller be liable to Buyer or to any other party for loss of profits, loss of savings, or punitive, exemplary, incidental, consequential or special damages, even if Seller has knowledge of the possibility of such potential loss or damage and even if caused by Seller’s negligence. © 1998 PMC-Sierra, Inc. PMC-950217R7 ref PMC-941027R2 Issue date: March, 1998. ______________________________________________________________________________________________ 7