PM5366-PI datasheet(224/267 Pages) PMC

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PRELIMINARY

PM5366 TEMAP-84

DATASHEET

PMC-2010672

ISSUE 1

HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER

AND M13 MULTIPLEXER

PROPRIETARY AND CONFIDENTIAL

212

Figure 51

- Framer Mode G.832 E3 Receive Output Stream

RDATO[x]

Oct 5308

RFPO/RMFPO[x]

Oct 12

Oct 11

FA28

FA11

FA14

FA13

FA12

FA15 FA16 FA17 FA18

O ct 5303

Oct 5301 Oct 5302

Oct 5304 Oct 5305 Oct 5306 Oct 5307

ROVRHD[x]

RSCLK[x]

Figure 52

- Framer Mode G.832 E3 Receive Output Stream with

RGAPCLK

RGAPCLK[x]

RDATO[x]

Oct 5308

Oct 12

Oct 11

Oct 5303

Oct 5301 Oct 5302

Oct 5304 Oct 5305 Oct 5306 Oct 5307

The Framer Mode G.832 E3 Receive Output Stream diagrams (Figure 51 and

Figure 52) show the format of the outputs RDATO, RFPO/RMFPO, RSCLK (and

RGAPCLK), and ROVRHD when the TEMAP-84 is configured for the E3 G.832

receive format. RFPO or RMFPO pulses high for one RSCLK cycle and is

aligned to the first bit of the FA1 byte in the G.832 E3 output data stream on

RDATO. ROVRHD will be high for every overhead bit position on the RDATO

data stream. The RGAPCLK output is available in place of RSCLK when the

RXGAPEN bit in DS3 and E3 Master Unchannelized Interface Options register

is set to logic 1. RGAPCLK remains high during the overhead bit positions as

shown in Figure 52.

13.3 Telecom DROP Bus Interface Timing

Figure 53 shows the function of the various telecom DROP bus signals in AU3

mode. Data on LDDATA[7:0] is sampled on the rising edge of LREFCLK. The

bytes forming the three STS-1 synchronous payload envelopes are identified

when the LDPL signal is high. In this diagram, a negative stuff event is shown

occurring on STS-1 #2 and a positive stuff event on STS-1 #3. The LDC1J1V1

signal pulses high, while LDPL is set low, to mark the C1 byte of the first STS-1

in every frame of the STS-3 transport envelope. The LDC1J1V1 signal is high

when the LDPL signal is high to mark every J1 byte of each of the three STS-1

SPEs. The bytes forming the various tributary synchronous payload envelopes

are identified by the LDTPL when set high. The LDV5 signal pulses high to mark

the V5 bytes of each tributary. LDTPL and LDV5 are invalid when LDPL is set

low. The three STS-1 SPEs can each have different alignments to the STS-3

PM5366-PI Datasheet(PDF) 224 Page - PMC-Sierra, Inc

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