PM5366-PI PMC-Sierra, Inc., PM5366-PI Datasheet - Page 220
PM5366-PI
Manufacturer Part Number
PM5366-PI
Description
HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER AND M13 MULTIPLEXER
Manufacturer
PMC-Sierra, Inc.
Datasheet
1.PM5366-PI.pdf
(267 pages)
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13.2 DS3 and E3 System Side Interface Timing
PROPRIETARY AND CONFIDENTIAL
Figure 41
Figure 42
The Framer Mode DS3 Transmit Input Stream diagram (Figure 41) shows the
expected format of the inputs TDAT and TFPI/TMFPI along with TICLK and the
output TFPO/TMFPO when the OPMODE_SPEx[2:0] bits are set to “DS3/E3
Framer Only mode” in the SPE Configuration registers. If the TXMFPI bit in the
DS3 and E3 Master Unchannelized Interface Options register is logic 0, then
TFPI is valid, and the TEMAP-84 will expect TFPI to pulse for every DS3
overhead bit with alignment to TDATI. If the TXMFPI register bit is logic 1, then
TMFPI is valid, and the TEMAP-84 will expect TMFPI to pulse once every DS3
M-frame with alignment to TDATI. If the TXMFPO bit in the DS3 and E3 Master
Unchannelized Interface Options register is logic 0, then TFPO is valid, and the
TEMAP-84 will pulse TFPO once every 85 TICLK cycles, providing upstream
equipment with a reference DS3 overhead pulse. If the TXMFPO register bit is
logic 1, then TMFPO is valid and the TEMAP-84 will pulse TMFPO once every
4760 TICLK cycles, providing upstream equipment with a reference M-frame
pulse. The alignment of TFPO or TMFPO is arbitrary. There is no set
relationship between TFPO/TMFPO and TFPI/TMFPI. The TGAPCLK output is
available in place of TFPO/TMFPO when the TXGAPEN bit in the DS3 and E3
Master Unchannelized Interface Options register is set to logic 1, as in Figure 42.
TGAPCLK remains high during the overhead bit positions.
TFPO /TMFPO[x]
TGAPCLK[x]
TFPI/TMFPI[x]
TDATI[x]
TICLK[x]
TDATI[x]
TICLK[x]
INFO 83
INFO 82
- Framer Mode DS3 Transmit Input Stream
- Framer Mode DS3 Transmit Input Stream With TGAPCLK
INFO 84
INFO 83
INFO 84
INFO 1
ISSUE 1
F4
INFO 83
INFO 82
INFO 84
IN FO 83
INFO 84
208
INFO 1
X1
INFO 2
IN FO 1
INFO 3
INFO 2
HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER
INFO 1
X2
INFO 2
IN FO 1
INFO 3
INFO 2
AND M13 MULTIPLEXER
PM5366 TEMAP-84
INFO 4
INFO 3
INFO 81
INFO 82
INFO 82
INFO 83
INFO 84
INFO 83
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