T7121 Overview
Low-cost device for B-channel (64 kbits/s) or D-channel (16 kbits/s) data transport. s s s s s s s s The T7121 HDLC Interface for ISDN (HIFI-64) connects serial munications links carrying HDLC bitsynchronous data frames to 8-bit microputer sysOptional transparent mode no HDLC framing is tems. There is an optional transparent mode of operperformed.
T7121 Key Features
- 30 mW typical operation at 12 MHz
- 5 mW standby mode (typical). HDLC transceiver
- Stand-alone HDLC framing operation
- 64-byte FIFO in both transmit and receive directions
- Supports block-move instruction
- Multiple frames allowed in FIFO
- Programmable FIFO full- and empty-level interrupt
- 1 Description