XRT84L38IB Exar Corporation, XRT84L38IB Datasheet - Page 288

• Manufacturer Part Number: XRT84L38IB
• Description: Network Controller & Processor ICs 8 Ch T1/E1 Framer
• Manufacturer: Exar Corporation

Specifications of XRT84L38IB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

XRT84L38
OCTAL T1/E1/J1 FRAMER
The Input signal timing is shown in
s mode.
When the Transmit Multiplex Enable bit is set to one and the Transmit Interface Mode Select [1:0] bits are set
to 10, the Transmit Back-plane interface of framer is running at a clock rate of 16.384MHz.
The interface consists of the following pins:
•
•
•
•
F
F
6.1.3.5
IGURE
IGURE
Data input (TxSer_n)
Transmit Serial Clock Input signal (TxSerClk_n)
Transmit Single-frame Synchronization Input signal (TxSync_n)
Transmit Input Clock (TxInClk_n)
TxSerClk (16.384MHz)
TxSerClk (INV)
TxSer
TxSync(input)
75. I
76.
IMING SIGNAL WHEN THE FRAMER IS RUNNING AT
NTERFACING
E1 Transmit Input Interface - HMVIP 16.384Mbit/s
F
0
F
0
F
Equipment
1
XRT84L38
Terminal
F
1
F
2
F
2
F
3
F
3
Figure 76
TO LOCAL TERMINAL EQUIPMENT USING
56 cycles
TxSer_0
TxInClk_0 (16.384MHz)
TxSync_0
TxSerClk_0 (1.544MHz)
TxSerClk_1 (1.544MHz)
TxSerClk_2 (1.544MHz)
TxSerClk_3 (1.544MHz)
TxSer_4
TxInClk_4 (16.384MHz)
TxSync_4
TxSerClk_4 (1.544MHz)
TxSerClk_5 (1.544MHz)
TxSerClk_6 (1.544MHz)
TxSerClk_7 (1.544MHz)
below when the framer is running at Bit-Multiplexed 16.384Mbit/
1
0
X 1
1
268
X
1
2
X
1
B
3
IT
X
-M
2
0
X 2
ULTIPLEXED
1
X
Data Input
Data Input
Transmit
Interface
Transmit
Interface
Payload
Payload
Chn 0
Chn 1
Chn 2
Chn 3
Chn 4
Chn 5
Chn 6
Chn 7
3
0
XRT84L38
16.384M
X
16.384M
4
0
X
BIT
BIT
/
S DATA BUS
5
/
0
S MODE
A
0
5
1
A
1
5
2
A
2
5
3
A
REV. 1.0.1
3