PM5366-PI datasheet(119/267 Pages) PMC

119 / 267 page

PRELIMINARY

PM5366 TEMAP-84

DATASHEET

PMC-2010672

ISSUE 1

HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER

AND M13 MULTIPLEXER

PROPRIETARY AND CONFIDENTIAL

107

inactive 64-byte identifier buffer can also be programmed with new messages

without timing constraints. Programming for TTI buffers is done one buffer at a

time by first programming the shadow buffer, switching to the shadow buffer for

the desired tributary, updating the desired tributary identifier buffer and finally

switching back from the shadow buffer to the tributary buffer. Switching between

the shadow buffer and normal buffer is synchronized to the start of each identifier

on a per-tributary basis.

9.29 Transmit Remote Alarm Processor (TRAP)

When configured for SONET compatible operation, each one of three TRAP

SONET/SDH Transmit Remote Alarm Processors processes remote alarm

indications of tributaries in an STS-3 stream. The virtual tributaries within an

STS-1 stream may be configured to accept either VT1.5 or VT2 tributary types.

The TRAP may also be configured for SDH compatible operation. The incoming

STM-1 stream may carry three AU3s or an AU4 with three TUG3s.

Two methods of encoding tributary remote alarms are supported, as selected on

a per-tributary basis by the ERDI bits of the TRAP Control registers and TTOP

Control registers. If the ERDI bits for a tributary are logic 0, RDI-V is transmitted

by setting bit 8 of the V5 byte to logic 1 and RFI-V is transmitted by setting bit 4

of the V5 byte to logic 1. Bits 6 and 7 of the Z7 will be zeros. If the ERDI bits for

a tributary are logic 1, extended RDI is effected. The triggers for ERDI-V are

programmable, but the following is always true if ERDI is configured:

bit 8 of the V5 byte equals bit 5 of the Z7 byte,

bit 7 of the Z7 byte is always the complement of bit 6 of the Z7 byte, and

if byte synchronous mapping is being used, bit 4 of V5 will equal the value

programmed through the Byte Synchronous Mapping Tributary Control

Indirect Access Data register; otherwise, it will be logic 0.

If the FORCEEN bit of the TRAP Control register is logic 1 then bit 8 of V5 (plus

bit 5 of Z7 if ERDI) reflects the state of the RDI bit of the TRAP Control register

and the ARDI bit of the TRAP Control register sets bit 6 of Z7 if ERDI; otherwise

it sets bit 4 of V5. If FORCEEN is logic 0, the source for RDI-V and RFI-V can

be any one of the RADEAST input, the RADWEST input or Telecom Drop bus

alarms.

The TRAP may be configured to insert tributary remote defect indications

(RDI-V), tributary remote fault indications (RFI-V) and tributary remote error

indications (REI-V) based on alarms detected in tributaries received on the

Telecom Drop bus, LDDATA[7:0]. The contents of the SONET/SDH Master

Tributary Remote Defect Indication Control register determine which alarms

PM5366-PI Datasheet(PDF) 119 Page - PMC-Sierra, Inc

PM5366-PI Datasheet(HTML) 119 Page - PMC-Sierra, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL