1 features, Features -3 – Motorola MPC8260 User Manual
Page 457
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MOTOROLA
Chapter 14. Serial Interface with Time-Slot Assigner
14-3
Part IV. Communications Processor Module
14.1 Features
Each SI has the following features:
¥
Can connect to four independent TDM channels. Each TDM can be one of the
following:
Ñ T1 or E1 line
Ñ Integrated services digital network primary rate (PRI)
Ñ An ISDN basic rateÐinterchip digital link (IDL) channel in up to four TDM
channelsÑeach IDL channel requires support from a separate SCC
Ñ ISDN basic rateÐgeneral circuit interface (GCI) in up to two TDM channelsÑ
each GCI channel requires support from a separate SMC
Ñ E3 or DS3 clear channel (on TDMa only)
Ñ User-deÞned interfaces
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Independent, programmable transmit and receive routing paths
¥
Independent transmit and receive frame syncs allowed
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Independent transmit and receive clocks allowed
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Selection of rising/falling clock edges for the frame sync and data bits
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Supports 1
´ and 2´ input clocks (1 or 2 clocks per data bit)
¥
Selectable delay (0Ð3 bits) between frame sync and frame start
¥
Four programmable strobe outputs and four (2
´) clock output pins
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1- or 8-bit resolution in routing, masking, and strobe selection
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Supports frames up to 16,384 bits long
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Internal routing and strobe selection can be dynamically programmed
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Supports automatic echo and loopback mode for each TDM
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Supports parallel-nibble interface for E3 or DS3 on TDMa channel
For the MCC route, the SI performs the following features:
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Up to 128 independent communication channels (64-Kbps per channel)
¥
Arbitrary mapping of any TDM time slots
¥
Can connect up to four independent TDM channels. Each TDM channel can support
up to 128 channels (all four channels can support up to 128 channels together).
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Independent mapping for receive/transmit
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Individual channel echo or loop mode
¥
Global echo or loop mode through the SI