DS21458LDK Maxim Integrated, DS21458LDK Datasheet - Page 10
DS21458LDK
Manufacturer Part Number
DS21458LDK
Description
Network Controller & Processor ICs
Manufacturer
Maxim Integrated
Datasheet
1.DS21458LDK.pdf
(269 pages)
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The parallel port provides access for control and configuration of all the DS21455/DS21458’s features.
The Extended System Information Bus (ESIB) function allows up to eight transceivers, two DS21455s or
two DS21458s to be accessed via a single read for interrupt status or other user-selectable alarm status
information. Diagnostic capabilities include loopbacks, PRBS pattern generation/detection, and 16-bit
loop-up and loop-down code generation and detection.
* The JTAG function on the DS21455/DS21458 is a single controller for all four transceivers, unlike
the DS21Q55, which has a JTAG controller-per-transceiver architecture.
1.1 Standards
ANSI:
AT&T:
ITU:
ETSI:
Japanese:
T1.403-1995, T1.231-1993, T1.408
TR54016, TR62411
G.703, G.704, G.706, G.736, G.775, G.823, G.932, I.431, O.151, O.161
ETS 300 011, ETS 300 166, ETS 300 233, CTR4, CTR12
JTG.703, JTI.431, JJ-20.11 (CMI coding only)
10 of 269
DS21455/DS21458 Quad T1/E1/J1 Transceivers
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