PM5347 datasheet(46/302 Pages) PMC

46 / 302 page

PM5347 S/UNI-PLUS

DATA SHEET

PMC-941033

ISSUE 6

SATURN USER NETWORK INTERFACE PLUS

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

Pin Name

Type

No.

Function

RSUC

Output

162

The receive section user channel (RSUC) signal

contains the section user channel (F1) extracted

from the receive stream. RSUC is updated on the

falling edge of ROWCLK.

RLOW

Output

154

The receive line orderwire (RLOW) signal contains

the line orderwire channel (E2) extracted from the

receive stream. RLOW is updated on the falling

edge of ROWCLK.

ROHFP

Output

172

The receive overhead frame pulse (ROHFP)

signal identifies the start of a byte on outputs

RSOW, RSUC and RLOW. If required, ROHFP is

one GROCLK clock cycle wide and can be used

as a reset pulse for an external counter. Please

refer to the functional timing diagrams for details.

TTOH

Input

The transmit transport overhead input (TTOH)

contains the transport overhead bytes (A1, A2,

J0/Z0, E1, F1, D1-D3, H3, K1, K2, D4-D12,

S1/Z1, M0 or M1/Z2, and E2) and error masks

(H1, H2, B1, and B2) which may be inserted, or

used to insert bit interleaved parity errors or

payload pointer bit errors into the overhead byte

positions in the transmit stream. Insertion is

controlled by the TTOHEN input. TTOH is

sampled on the rising edge of TTOHCLK.

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