Datasheet
DS2155
17 of 238
Figure 3-3. Receive and Transmit Framer/HDLC
RECEIVE
FRAMER
TRANSMIT
FRAMER
DATA
CLOCK
SYNC
SYNC
CLOCK
DATA
FRAMER LOOPBACK
XMIT
HDLC #1
MAPPER
XMIT
HDLC #2
MAPPER
128 Byte
FIFO
128 Byte
FIFO
MAPPER MAPPER
REC
HDLC #1
REC
HDLC #2
128 Byte
FIFO
128 Byte
FIFO
DATA
CLOCK
SYNC
SYNC
CLOCK
DATA
RPOS
RNEG
RCLK
TPOS
TNEG
TCLK
PAYLOAD LOOPBACK










