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MC68QH302 Datasheet(PDF) 2 Page - Freescale Semiconductor, Inc

Part No. MC68QH302
Description  Quad HDLC Integrated Multiprotocol Processor
Download  6 Pages
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Maker  FREESCALE [Freescale Semiconductor, Inc]
Homepage  http://www.freescale.com
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MC68QH302 Datasheet(HTML) 2 Page - Freescale Semiconductor, Inc

   
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MC68QH302 Technical Summary
Figure 1. MC68QH302 Block Diagram
The MC68QH302 supports a full ISDN basic rate interface with one serial channel left over to communicate
with the DTE as shown in Figure 2. The dual-channel SCC1 is used to support the two B channels.
Figure 2. MC68QH302 Supporting a Full ISDN Basic Rate Interface
SCC1
(2 Channels)
SCC2
+
SCC3
SCP
+
2 SMCs
1152 Bytes
Dual-Ported
RAM
8 DMA
Channels
RISC
Controller
Interrupt
Controllers
RAM
+
ROM
3 Timers
4 Chip Selects
Parallel I/O
General-Purpose
DMA
Channel
M68000
Core
Peripheral Bus
68000
System Bus
20 Address Lines
8/16 Data Lines
MC68QH302
Flash +
RAM +
EEPROM
MC145407
RS232-C
MC68QH302
SCC2
SCC1*
145572
U-INTF
or
145574
S/T INTF
SCC3
IDL
or
GCI
2B + D
Note: *SCC1 = Dual channel SCC, each channel used for a B channel
X-FRMR
and
Line I/F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com


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