ort8850 Lattice Semiconductor Corp., ort8850 Datasheet - Page 2

• Manufacturer Part Number: ort8850
• Description: Field-programmable System Chip Fpsc Eight-channel X 850 Mbits/s Backplane Transceiver
• Manufacturer: Lattice Semiconductor Corp.

Lattice Semiconductor
Table of Contents
Introduction .................................................................. 1
Table of Contents......................................................... 2
Features ....................................................................... 3
Description ................................................................... 6
ORT8850 Overview ................................................... 11
Backplane Transceiver Core Detailed Description .... 25
FPGA/Embedded Core Interface Signals .................. 47
Memory Map .............................................................. 57
Electrical Characteristics............................................ 69
Recommended Operating Conditions ........................ 69
Pin Information ........................................................... 77
Package Pinouts ........................................................ 82
Embedded Core Features............................... 3
FPGA Features ............................................... 4
Programmable Logic System Features........... 5
What is an FPSC?........................................... 6
FPSC Overview............................................... 6
ispLEVER Development System..................... 7
FPSC Design Kit ............................................. 7
FPGA Logic Overview..................................... 8
System-Level Features ................................... 9
Configuration................................................. 10
Additional Information ................................... 10
Embedded Core Overview ............................ 11
SONET Logic Blocks - Overview .................. 12
System Considerations for Reference Clock
SONET Bypass Mode ................................... 16
STM Macrocells - Overview .......................... 17
HSI Macrocell - Overview.............................. 19
Supervisory and Test Support Features - Over-
Protection Switching - Overview ................... 21
FPSC Configuration - Overview .................... 22
SONET Logic Blocks, Detailed Description .. 25
Receive Path Logic ....................................... 34
Clock and Data Timing at the FPGA/Embedded
Powerdown Mode ......................................... 56
Protection Switching...................................... 56
Registers Access and General Description... 57
Absolute Maximum Ratings .......................... 69
Power Supply Decoupling LC Circuit ............ 70
HSI Electrical and Timing Characteristics ..... 71
Embedded Core LVDS I/O............................ 73
Distribution.............................................. 15
view ........................................................ 19
Core Interface - SONET Block ............... 49
2
Package Thermal Characteristics Summary............ 100
Package Parasitics................................................... 102
Package Outline Diagrams ...................................... 102
Ordering Information ................................................ 104
Revision History ....................................................... 105
qJA .............................................................. 100
YJC ............................................................. 100
qJC.............................................................. 100
qJB .............................................................. 100
FPSC Maximum Junction Temperature ...... 101
Package Thermal Characteristics ............... 101
Heat Sink Information.................................. 101
Package Coplanarity ................................... 101
Terms and Definitions ................................. 102
Package Outline Drawings.......................... 103
ORCA ORT8850 Data Sheet