Maxim Integrated DS33R11 - Manual (Page 23)

DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver
23 of 344
Figure 6-4. Receive and Transmit T1/E1/J1 Framer
RECEIVE
FRAMER
TRANSMIT
FRAMER
DATA
CLOCK
SYNC
SYNC
CLOCK
DATA
F
R
AME
R
L
O
O
P
BAC
K
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
P
A
Y
LOA
D
L
O
OP
B
A
C
K
INTERNAL
SIGNALS
FROM
LIU
INTERNAL
SIGNALS
TO
BACKPLANE
INTERFACE