| 1. | 
                              Supports independent Add and Drop Bus timing and operating modes  | 
                            
                            
                              | 2. | 
                              High-order or low-order pointers are processed and monitored including Loss Of Pointer (LOP-P), New Data Flags (NDF), and Alarm Indication Signal (AIS-P)  | 
                            
                            
                              | 3. | 
                              High-speed microprocessor interface is configurable to operate with most commercial 16 bits microprocessors  | 
                            
                            
                              | 4. | 
                              Low power CMOS technology with 1.8V core and 3.3V I/O and boundary scan  | 
                            
							
                              | 5. | 
                              Easy for configuration and programming for software development. (specification was defined to ease and speed up the software development)   | 
                            
							
                              | 6. | 
                              Unique Dual Telecom Bus Timing Interface  | 
                            
							
                              | 7. | 
                              Independently programmable Add/Drop TU/VT time slot  | 
                            
							
                              | 8. | 
                              Protection Switch Recovery Time from East to West is below 10 ms  | 
                            
							
                              | 9. | 
                              Full Bandwidth of STM-1 Support :Totally 3xVC3/63xVC12/84xVC11 (64VC11/perVCG)  | 
                            
							
                              | 10. | 
                              Mix of High Order (HO) and Low Order (LO) Mapping into STM-1  | 
                            
							
                              | 11. | 
                              Up To 255 ms Differential Delay Compensation  | 
                            
							
                              | 12. | 
                              Latency Below ~ 200uS (LO)  | 
                            
							
                              | 13. | 
                              Optional size of SDRAM support (64Mb/128Mb/256Mb)  | 
                            
							
                              | 14. | 
                              Support SDRAM interface test-mode which effectively help initial debugging to reduce the development cycle  | 
                            
							
                              | 15. | 
                              Optional Grace mode function for Drop-side FIFO control  | 
                            
							
                              | 16. | 
                              Efficient software and hardware technical support  |