PM5366 datasheet(63/267 Pages) PMC

63 / 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

Pin Name

Type

No.

Function

SDDATA[0]

SDDATA[1]

SDDATA[2]

SDDATA[3]

SDDATA[4]

SDDATA[5]

SDDATA[6]

SDDATA[7]

Output

Tristate

System Drop Bus Data (SDDATA[7:0]). The System

drop data bus is a time division multiplexed bus which

carries the E1, T1 and DS3 tributary data is byte serial

format over the SBI bus structure. This device only

drives the data bus during the timeslots assigned to

this device.

SDDATA[7:0] is updated on the rising edge of

SREFCLK.

SDDP

Output

Tristate

System Drop Bus Data Parity (SDDP). The system

drop bus signal carries the even or odd parity for the

drop bus signals SDDATA[7:0], SDPL and SDV5.

Whenever the TEMAP-84 drives the data bus, the

parity is valid.

SDDP is updated on the rising edge of SREFCLK.

SDPL

Output

Tristate

System Drop Bus Payload Active (SDPL). The

payload active signal indicates valid data within the SBI

bus structure. This signal is asserted during all octets

making up a tributary. This signal goes high during the

V3 or H3 octet of a tributary to accommodate negative

timing adjustments between the tributary rate and the

fixed SBI bus structure. This signal goes low during the

octet after the V3 or H3 octet of a tributary to

accommodate positive timing adjustments between the

tributary rate and the fixed SBI bus structure.

In the flexible bandwidth configuration, SDPL is

asserted for each byte as it becomes available.

Therefore, SDPL may be high or low arbitrarily during

any SREFCLK cycle.

The TEMAP-84 only drives the payload active signal

during the tributary timeslots assigned to this device.

SDPL is updated on the rising edge of SREFCLK.

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