XRT83SL216(2005) 查看數據表（PDF） - Exar Corporation
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XRT83SL216 Datasheet PDF : 41 Pages
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XRT83SL216
PRELIMINARY
16-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
xr
REV. P1.0.3
TRANSMITTER SECTION
NAME
PIN
TxOE
K14
TYPE
I
TCLK15
A14
I
TCLK14
D13
TCLK13
C14
TCLK12
E14
TCLK11
N14
TCLK10
P13
TCLK9
U16
TCLK8
R13
TCLK7
R5
TCLK6
U2
TCLK5
P5
TCLK4
N4
TCLK3
E4
TCLK2
A3
TCLK1
F5
TCLK0
C5
TPOS15
B13
I
TPOS14
E13
TPOS13
A15
TPOS12
F13
TPOS11
M14
TPOS10
N13
TPOS9
U15
TPOS8
T13
TPOS7
T5
TPOS6
U3
TPOS5
N5
TPOS4
M4
TPOS3
D4
TPOS2
B4
TPOS1
D5
TPOS0
B5
DESCRIPTION
Transmit Output Enable
Upon power up, the transmitters are tri-stated. Enabling the transmitters is
selected through the serial microprocessor interface by programming the
appropriate channel register if this pin is pulled "High". If the TxOE pin is
pulled "Low", all 16 transmitters are tri-stated.
NOTE: TxOE is ideal for redundancy applications. See the Redundancy
Applications Section of this datasheet for more details. Internally
pulled "Low" with a 50kΩ resistor.
Transmit Clock Input
TCLK is the input facility clock used to sample the incoming TPOS/TNEG data.
TPOS/TNEG data can be sampled on either edge of TCLK selected by TCLK-
inv in the appropriate channel register.
TPOS/TDATA Input
Transmit digital input pin. In dual rail mode, this pin is the transmit positive
data input. In single rail mode, this pin is the transmit non-return to zero (NRZ)
data input.
8
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