PM5366-PI PMC-Sierra, Inc., PM5366-PI Datasheet - Page 224

• Manufacturer Part Number: PM5366-PI
• Description: HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER AND M13 MULTIPLEXER
• Manufacturer: PMC-Sierra, Inc.

PRELIMINARY
DATASHEET
PMC-2010672
13.3 Telecom DROP Bus Interface Timing
PROPRIETARY AND CONFIDENTIAL
RGAPCLK[x]
RFPO /RMFPO[x]
RDATO[x]
ROVRHD[x]
RDATO[x]
RSCLK[x]
Figure 51
Figure 52
RGAPCLK
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.
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
Oct 530 1 O ct 530 2
Oct 530 1 Oct 530 2
Oct 530 3
- Framer Mode G.832 E3 Receive Output Stream
- Framer Mode G.832 E3 Receive Output Stream with
O ct 530 3
Oct 530 4 O ct 530 5 Oct 530 6 O ct 530 7
Oct 530 4 O ct 530 5 Oct 530 6 O ct 530 7
ISSUE 1
Oct 530 8
FA1 1
212
FA1 2
O ct 530 8
FA1 3
FA1 4
FA1 5
HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER
FA1 6 FA1 7 FA1 8
AND M13 MULTIPLEXER
PM5366 TEMAP-84
FA2 8
Oct 1 1
Oct 1 1
Oct 1 2
O ct 1 2