MC145572 Datasheet, PDF (203/264 Pages) Freescale Semiconductor, Inc – ISDN U-INTERFACE TRANSCEIVER

A.2.3
A.3
Freescale Semiconductor, Inc.
Software
• Standalone or Terminal Operation
• Resident Firmware Monitor for User Control of Board
• Device Driver for Serial Control Port Interface
• Microcontroller Controlled or Automatic Activation/Deactivation
• Access to All Maintenance Channels
• MC68HC05 Assembly Language Source Code Available
• Enhanced Command Set from the MC145494EVK
BLOCK DIAGRAM
Figure A–2 is a basic functional block diagram of the MC145572EVK ISDN U–Interface Evaluation
Kit. Note that the dashed line represents the physical and logical separation between the LT and the
NT1 sides of the evaluation board. While the board is capable of activating “standalone”, the user
may decide to use a single ASCII terminal to gain total control of the MC145572EVK capabilities.
Or the user may choose to split the board, allowing the LT and NT1 portions to be physically located
in separate areas.
NT U-INTERFACE
NETWORK TERMINATION
IDL
MC145474
ISDN
S/T
S/T-INTERFACE
TRANSCEIVER
MC145572
ISDN
U-INTERFACE
TRANSCEIVER
SCP
MC68HC705C8
MICROCONTROLLER
LT U-INTERFACE
MC145572
ISDN
U-INTERFACE
TRANSCEIVER
LINE TERMINATION
IDL
REFERENCE
CLOCK
EXT
GENERATOR
CLK
MC68HC705C8
MICROCONTROLLER
SCP
5 PPM
CLOCK
SOURCE
BERT
CLK
GATED
CLOCK
GENERATOR
MC145407
MC145407
GATED
CLOCK
GENERATOR
BERT
CLK
EIA-232-D/V.28
EIA-232-D/V.28
Figure A–2. MC145572EVK Functional Block Diagram
MOTOROLA
For More InforMmCa1t4io55n7O2 n This Product,
A–3
Go to: www.freescale.com