MT90733

The MT90733 DS3 Framer (DS3F) is designed for mapping broadband payloads into the DS3 frame format, which meets ANSI's T1.107-1988 and supplement T1.107a-1990.

Although the C-bit parity format is recommended, the DS3F can also operate in the M13 mode. In the C-bit parity format, the DS3F  MT90733 provides a separate interface for selected C-bits. The DS3F also provides software access for transmitting and receiving the FEAC channel, and generates and detects DS3 AIS, DS3 idle, Pbit parity and C-bit parity. In addition, performance counters are provided, as well as the ability to generate single framing, FEBE, C-bit parity and P-bit parity errors. The MT90733 payload interface is selectable through software as either a bit-serial or nibble-parallel format.