DS2155 and DS26502 Software Comparison

Abstract: This application note discusses the differences between the DS2155 T1/E1/J1 Single Chip Transceiver and the DS26502 T1/E1/J1/64KCC Bits Element register maps.

The DS26502 is a T1/E1/J1/64kHz Composite Clock Bits Element that also functions as a reduced-feature-set SCT. As it was loosely based on the DS2155 SCT, the memory map and register set have many similarities to the DS2155, making it fairly easy to migrate existing DS2155 software drivers to the DS26502. However some changes will be necessary because of added features, removed features and general changes to the memory map and register set.