XRT86VL38
PRELIMINARY
xr
OCTAL T1/E1/J1 FRAMER/LIU COMBO
REV. P1.0.6
139
1-0
TxIMODE[1:0]
R/W
0
(
Continued)
In the high speed multiplexed mode, the following signals will be used by the
high speed multiplexed interface:
TxSERCLK is an input clock at 1.544MHz
TxMSYNC will become the highspeed input clock at 12.352 or 16.384MHz to
input high-speed multiplexed data on the back-plane interface
TxSYNC can be configured as a single frame or super-frame boundary,
depending on the setting of bit 5 of register 0xn109
TxSER is the high-speed data input
N
OTE
: In high speed mode, transmit data is sampled on the rising edge of the
12Mhz or 16MHz clock edge.
N
OTE
: Multiplexed data on Channel 4 is de-multiplexed into the LIU outputs at
channel 4 through 7.
T
ABLE
51: T
RANSMIT
I
NTERFACE
C
ONTROL
R
EGISTER
- T1 M
ODE
R
EGISTER
31 - T1 M
ODE
T
RANSMIT
I
NTERFACE
C
ONTROL
R
EGISTER
(TICR) H
EX
A
DDRESS
:0
X
n120
B
IT
F
UNCTION
T
YPE
D
EFAULT
D
ESCRIPTION
-O
PERATION
T
ABLE
53: T
RANSMIT
I
NTERFACE
S
PEED
WHEN
M
ULTIPLEXED
M
ODE
IS
E
NABLED
(T
X
MUXEN = 1)
T
X
IMODE[1:0]
T
RANSMIT
I
NTERFACE
S
PEED
00
Bit-Multiplexed Mode at 12.352MHz is Enabled:
Transmit interface is taking four-channel multiplexed
data at a rate of 12.352Mbit/s from channel 0 and bit-
demultiplexing the serial data into 4 channels and output
to the line on channels 0 through 3. The TxSYNC signal
pulses “High” during the framing bit of each DS-1 frame.
01
Bit-Multiplexed Mode at 16.384MHz is Enabled:
Transmit interface is taking four-channel multiplexed
data at a rate of 16.384Mbit/s from channel 0 and bit-
demultiplexing the serial data into 4 channels and output
to the line on channels 0 through 3. The TxSYNC signal
pulses “High” during the framing bit of each DS-1 frame.
10
HMVIP High-Speed Multiplexed Mode Enabled:
Transmit interface is taking four-channel multiplexed
data at a rate of 16.384Mbit/s from channel 0 and byte-
demultiplexing the serial data into 4 channels and output
on channels 0 through 3. The TxSYNC signal pulses
“High” during the last two bits of the previous DS-1
frame and the first two bits of the current DS-1 frame.
11
H.100 High-Speed Multiplexed Mode Enabled:
Transmit interface is taking four-channel multiplexed
data at a rate of 16.384Mbit/s from channel 0 and byte-
demultiplexing the serial data into 4 channels and output
to the line on channels 0 through 3. The TxSYNC signal
pulses “High” during the last bit of the previous DS-1
frame and the first bit of the current DS-1 frame.