CONFIDENTIAL
CY7C9537B
OC-48/STM-16 Framer–POSIC2G™
• ProgrammableA1A2processingbypassinRxdirection
with frame sync input
Features
• OC-48/STS-48/STM-16, OC-12/STS-12/STM-4,
OC-3/STS3/STM-1rates, concatenatedandnon-concat-
enated
• Complete section overhead (SOH), line overhead
(LOH), and path overhead (POH) processing
• APS extraction, CPU interrupt generation, and
programmable insertion of APS byte
— Complies with ITU-Standards G.707/Y.1322 and
G.783[1,2]
• Line side APS port interface
— Complies with Bellcore GR253 rev.1, 1997[3]
• Provision for protection switching on SONET/SDH port
• Programmable PRBS generator and receiver
— Channelized operation: supports 16xSTS-3c/VC4,
4xSTS-12c/VC4-4c, 2xSTS-24c/VC4-8c, and
1xSTS-48c/VC4-16c within OC-48 stream
• Serial port to access line/section data communication
channel (DCC) and voice communication channel
(VCC)
— Supports TUG3 mapping in SDH mode
• Full duplex mapping of ATM cells over SONET/SDH
— Complies with ITU-Standards I.432.2[4,5,6]
• FullduplexUTOPIA/OIF-SPI(POS-PHY)level3interface
[15,16]
• Full duplex mapping of packet-over-SONET/SDH: IETF
RFC 1619/1662/2615 (HDLC/PPP)[7,8,9]
• 16-bit/32-bit host CPU interface bus
• JTAG and boundary scan
• Generic Protocol Encapsulator/Decapsulator delin-
eates packets/frames with length-CRC frame construct
• Glue-less interface with Cypress CYS25G0101DX
OC-48 PHY
— Generic Framing Procedure (GFP) per ANSI
T1X1.5[10,11,12]
• 0.18-µm CMOS, 504-pin BGA package
— GFP 268r1
• +1.8V for core, +3.3V for LVTTL I/O, +1.5V/+3.3V for
HSTL/LVPECL I/O supply, and +0.75V/2.0V reference
— Simple Data Link (SDL) - IETF RFC2823 [13]
— Cypress Hybrid Data Transport (HDT) [14]
• User-programmable encapsulation
• User-programmable clear channel transport
• User-programmable SONET/SDH bypass
Applications
• Multiservice nodes
• ATM switches and routers
• Packet routers
• Programmable frame tagging engine for packet
preclassification enables such features as
• Multi-service routers
— MPLS label lookup and tagging
— PPP: LCP and NCP tagging
• SONET/SDH add-drop mux for packet/data applications
• SONET/SDH/ATM/POS test equipment
— PPP control packets optionally sent to host CPU
interface
— MAC/layer 3 address look up and tagging
Notes:
1. ITU-T Recommendation G.707. “Network Node Interface for the Synchronous Digital Hierarchy.” 1996.
2. ITU-T Recommendation G.783. “Characteristics of Synchronous Digital Hierarchy (SDH) Equipment Functional Blocks.” 2000.
3. Bellcore Publication GR-253-Core. “Synchronous Optical Network (SONET) Transport Systems: Common Generic Criteria.” 1997.
4. ITU-T Recommendation I.432.3. “B-ISDN User-Network Interface—Physical Layer Specification: 1544 kbit/s and 2048 kbit/s operation.” 1999.
5. American National Standards Institute. “Synchronous Optical Network (SONET)—Basic Description including Multiplex Structure, Rates and Formats.” ANSI
T1.105–1995.
6. American National Standards Institute. “Synchronous Optical Network (SONET)—Payload Mappings.” ANSI T1.105.02–1998.
7. Simpson, W. “PPP Over SONET/SDH.” RFC 1619. May 1994.
8. Simpson, W., ed. “PPP in HDLC-like Framing.” RFC 1662. Daydreamer. July 1994.
9. Malis, A. and Simpson, W. “PPP Over SONET/SDH.” RFC 2615. June 1999.
10. Hernandez-Valencia, E. Lucent Technologies. “A Generic Frame Format for Data Over SONET (DoS).” March 2000.
11. Gorshe, C. and Steven. T1X1.5/99-204, T1 105.02. Draft Text for Mapping IEEE 802.3 Ethernet MAC Frames to SONET Payload. July 1999.
12. Hernandez-Valencia, E. Lucent Technologies. T1X1.5/2000-209. “Generic Framing Procedure (GFP) Specification.” October 9–13, 2000.
13. Carlson, J., P. Langner, E.J. Hernandez-Valencia, and J. Manchester. “PPP over Simple Data Link (SDL) using SONET/SDH with ATM-like Framing.” rfc2823.txt,
May 2000.
14. Pankaj, K. “A Hybrid Data Transport Protocol for Optical Networks.” RFC draft-jha-optical-hdt-00.txt. November 2000.
Cypress Semiconductor Corporation
Document #: 38-02079 Rev. *F
•
3901 North First Street
•
San Jose, CA 95134
•
408-943-2600
Revised May 3, 2005