MC145572PBR2 Freescale Semiconductor, MC145572PBR2 Datasheet - Page 201
MC145572PBR2
Manufacturer Part Number
MC145572PBR2
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC145572PBR2.pdf
(264 pages)
Specifications of MC145572PBR2
Number Of Line Interfaces
1
Control Interface
HDLC
Lead Free Status / Rohs Status
Not Compliant
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Freescale Semiconductor, Inc.
A
MC145572EVK ISDN U-INTERFACE
TRANSCEIVER EVALUATION KIT
A.1
INTRODUCTION
The MC145572EVK ISDN U–Interface Transceiver Evaluation Kit provides Motorola ISDN customers
a convenient and efficient vehicle for evaluating the MC145572 ISDN U–interface transceiver. The
approach taken to demonstrate the MC145572 ISDN U–interface transceiver is to provide the user
with a fully functional NT1 connected to an LT. An NT1 provides transparent 2B+D data transfer
between the U– and S/T–interfaces. In addition, it must also provide for network–initiated mainte-
nance procedures. It does not, however, provide any interface to higher level protocols — this func-
tionality is left to entities such as the NT2.
The MC145572EVK ISDN U–Interface Evaluation Kit can be physically and functionally separated
into two “halves”. The left side of the card is the NT1, while the right side of the card is the LT. Alter-
natively, it can be thought of as having both ends of the two wire U–interface, extending from the
customer premise (NT1) to the digital switch line card (LT), on a single standalone evaluation board.
The kit provides the ability to interactively manipulate status registers in the MC145572 ISDN U–
interface transceiver as well as in the MC145474/75 S/T–interface transceiver with the aid of an exter-
nal terminal or PC. A unique combination of hardware and software features allows for standalone
or terminal activation of the U–interface and as such provides an excellent platform for NT1 and LT
hardware/software development.
The MC145572EVK ISDN U–Interface Evaluation Kit can be interfaced directly to the MC68302 Inte-
grated Multiprotocol Processor Development System to aid in the hardware and software develop-
ment of S/T– and U–interface terminal equipment.
For More Information On This Product,
MOTOROLA
MC145572
A–1
Go to: www.freescale.com
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