PM7341 datasheet(55/413 Pages) PMC

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PRELIMINARY

INVERSE MULTIPLEXING OVER ATM

PM7341 S/UNI-IMA-84

DATASHEET

PMC-2000223

ISSUE 4

INVERSE MULTIPLEXING OVER ATM

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

Pin Name

Type

Pin No.

Function

TSDATA[31]

TSDATA[30]

TSDATA[29]

TSDATA[28]

TSDATA[27]

TSDATA[26]

TSDATA[25]

TSDATA[24]

TSDATA[23]

TSDATA[22]

TSDATA[21]

TSDATA[20]

TSDATA[19]

TSDATA[18]

TSDATA[17]

TSDATA[16]

TSDATA[15]

TSDATA[14]

TSDATA[13]

TSDATA[12]

TSDATA[11]

TSDATA[10]

TSDATA[9]

TSDATA[8]

TSDATA[7]

TSDATA[6]

TSDATA[5]

TSDATA[4]

TSDATA[3]

TSDATA[2]

TSDATA[1]

TSDATA[0]

Output

C25

D24

C26

B26

A22

B21

D21

C21

A5C6

The Transmit Serial Data (TSDATA[31:0])

signals contain the transmit data for the 32

independently timed links. For channelized links,

TSDATA[n] contains the 24 (T1) or 31 (E1) time-

slots that comprise the channelized link.

TSCLK[n] must be gapped during the T1 framing

bit position or the E1 frame alignment signal

(time-slot 0). The S/UNI-IMA-84 uses the location

of the gap to determine the channel alignment on

TSDATA[n].

For unchannelized links, TSDATA[n] contains the

ATM cell data. For certain transmission formats,

TSDATA[n] may contain place holder bits or time-

slots. TSCLK[n] must be externally gapped

during the place holder positions in the

TSDATA[n] stream.

The TSDATA[31:0] output signals are updated on

the falling edge of the corresponding

TSCLK[31:0] clock

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