ds265188-port-t1-e1-j1-transc Maxim Integrated Products, Inc., ds265188-port-t1-e1-j1-transc Datasheet - Page 21
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ds265188-port-t1-e1-j1-transc
Manufacturer Part Number
ds265188-port-t1-e1-j1-transc
Description
Ds26518 8-port T1/e1/j1 Transceiver
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.DS265188-PORT-T1-E1-J1-TRANSC.pdf
(313 pages)
- Current page: 21 of 313
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AL/RSIGF/FLOS2
AL/RSIGF/FLOS3
AL/RSIGF/FLOS4
AL/RSIGF/FLOS5
AL/RSIGF/FLOS6
AL/RSIGF/FLOS7
AL/RSIGF/FLOS8
TSSYNCIO1
TSSYNCIO2
TSSYNCIO3
TSSYNCIO4
TSSYNCIO5
TSSYNCIO6
TSSYNCIO7
TSSYNCIO8
TSYSCLK2/
TSYSCLK3/
TSYSCLK4/
TSYSCLK5/
TSYSCLK6/
TSYSCLK7/
TSYSCLK8/
TSYSCLK1
TSYNC1/
TSYNC2/
TSYNC3/
TSYNC4/
TSYNC5/
TSYNC6/
TSYNC7/
TSYNC8/
TSER1
TSER2
TSER3
TSER4
TSER5
TSER6
TSER7
TSER8
TCLK1
TCLK2
TCLK3
TCLK4
TCLK5
TCLK6
TCLK7
TCLK8
NAME
M10
D12
N11
C14
N10
PIN
L11
F10
L10
E10
B13
P13
P14
L14
F14
T12
B11
A13
R4
N7
C5
D7
M6
M7
F6
E7
P5
F3
P3
B4
F7
L8
L3
Input with
pulldown/
internal
Output
Output
TYPE
Input/
Input
Input
Input
Transmit NRZ Serial Data 1 to 8. These pins are sampled on the falling edge of
TCLKn when the transmit-side elastic store is disabled. These pins are sampled
on the falling edge of TSYSCLKn when the transmit-side elastic store is enabled.
In IBO mode, data for multiple framers can be used in high-speed multiplexed
scheme. This is described in Section 9.8.2. The table there presents the
combination of framer data for each of the streams.
TSYSCLKn is used as a reference when IBO is invoked. See
Transmit Clock 1 to 8. A 1.544MHz or a 2.048MHz primary clock. Used to clock
data through the transmit side of the transceiver. TSERn data is sampled on the
falling edge of TCLKn. TCLKn is used to sample TSERn when the elastic store is
not enabled or IBO is not used.
Transmit System Clock 1. 1.544MHz, 2.048MHz, 4.096MHz, 8.192MHz, or
16.384MHz clock. Only used when the transmit-side elastic store function is
enabled. Should be tied low in applications that do not use the transmit-side
elastic store. The clock can be 4.096MHz, 8.912MHz, or 16.384MHz when IBO
mode is used. TSYSCLK1 does not have an internal pulldown resistor. Note: If
the GTCR1.528MD bit is set, TSYSCLK1 becomes the master TSYSCLK for all
framers.
Transmit System Clock 2 to 8. 1.544MHz, 2.048MHz, 4.096MHz, 8.192MHz, or
16.384MHz clock. Only used when the transmit-side elastic store function is
enabled. Should be tied low in applications that do not use the transmit-side
elastic store. The clock can be 4.096MHz, 8.912MHz, or 16.384MHz when IBO
mode is used. TSYSCLK1 does not have an internal pulldown resistor. Note: If
the GTCR1.528MD bit is set, TSYSCLK1 becomes the master TSYSCLK for all
framers.
Analog Loss/Receive-Signaling Freeze/Framer LOS. Analog LOS reflects the
LOS (loss of signal) detected by the LIU front-end and framer LOS is LOS
detection by the corresponding framer; the same pins can reflect receive-
signaling freeze indications. This selection can be made by settings in the Global
Transceiver Clock Control Register 1 (GTCCR1).
AL/RSIGF/FLOS[8:2] is available only by setting the GTCR1.528MD bit to 1.
Transmit Synchronization 1 to 8. A pulse at these pins establishes either frame
or multiframe boundaries for the transmit side. These signals can also be
programmed to output either a frame or multiframe pulse. If these pins are set to
output pulses at frame boundaries, they can also be set to output double-wide
pulses at signaling frames in T1 mode. The operation of these signals is
synchronous with TCLK[8:1].
Transmit System Synchronization In. These pins are selected when the
transmit-side elastic store is enabled. A pulse at these pins establishes either
frame or multiframe boundaries for the transmit side. Should be tied low in
applications that do not use the transmit-side elastic store. The operation of this
signal is synchronous with TSYSCLK[8:1].
Transmit System Synchronization Out. If configured as an output and the
transmit elastic store is enabled, an 8kHz pulse synchronous to the BPCLK1 will
be generated. This pulse in combination with BPCLK1 can be used as an IBO
master. TSSYNCIOn can be used as a source to RSYNCn and TSSYNCIOn of
another DS26518 or RSYNC and TSSYNC of other Maxim parts. Note:
TSSYNCIO[8:1] are not used when GTCR1.528MD is set. When GTCR1.528MD
is set, the TSSYNCIO pin (N13) is used.
TRANSMIT FRAMER
21 of 313
FUNCTION
DS26518 8-Port T1/E1/J1 Transceiver
Table
9-8.
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