MC145572ACR2 Freescale Semiconductor, MC145572ACR2 Datasheet - Page 233
MC145572ACR2
Manufacturer Part Number
MC145572ACR2
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC145572ACR2.pdf
(264 pages)
Specifications of MC145572ACR2
Number Of Line Interfaces
1
Control Interface
HDLC
Lead Free Status / Rohs Status
Compliant
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MOTOROLA
OFF-CARD BUS
NOTES:
PROPRIETARY
1. MC68MH360 supports 32 HDLC channels.
2. MPC850DH supports 84 HDLC channels.
RAM
LOGIC
GLUE
FSC
ROM
Freescale Semiconductor, Inc.
CLK
For More Information On This Product,
MC68MH360
MPC850DH
Figure F–7. Multi–Line U Line Card
POWER PC
SCC #1
SCC #2
CORE
SCP
OR
PCM/IDL2 BUS
Go to: www.freescale.com
25 MHz
25 MHz
D CHANNEL
MC145572
D CHANNEL BUS
64 kbps
2.048 MHz
Create separate D channel data bus by OR’ing the DCHout pins
of all U transceivers. This bus shares the same clock and frame
sync as the PCM/IDL2 bus. The output of the OR gate is
connected to the Rx data pin of SCC1. The transmit data pin of
SCC1 is connected to all the DCHin pins of the U transceivers.
Use the integrated timeslot assigner on each MC145572 to
assign D and B channels to individual timeslots.
One MC145572 device can generate timing, others are slaves.
All MC145572s can share 20.48 MHz crystal.
SCP BUS
DCHout
PINS
OR"
MC145572
16 U-INTERFACE
TRANSCEIVERS
F–7
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