PM6388 datasheet(21/345 Pages) PMC

21 / 345 page

PM6388 EOCTL

DATA SHEET

PMC-1971019

ISSUE 6

OCTAL E1 FRAMER

PROPRIETARY and CONFIDENTIAL to PMC-Sierra Inc. and for its customers’ internal use

• Provides an 8-bit microprocessor bus interface for configuration, control, and

status monitoring.

• Low power 3.3V CMOS technology with 5V tolerant inputs.

• Available in a 128 pin PQFP (14 mm by 20 mm) package.

• Provides a -40°C to +85°C Industrial temperature operating range.

Each one of eight receiver sections:

• Frames to ITU-T G.704 basic and CRC-4 multiframe formatted E1 signals.

The framing procedures are consistent with ITU-T G.706 specifications.

• Red, and AIS alarm detection and integration are done according to ITU-T

Q.431 specifications.

• Provides performance monitoring counters sufficiently large as to allow

performance monitor counter polling at a minimum rate of once per second.

Optionally, updates the performance monitoring counters and interrupts the

microprocessor once per second, timed to the receive line. Accumulators are

provided for counting CRC-4 errors, framing bit errors and loss of frame or

change of frame alignment events.

• Provides an optional elastic store for backplane rate adaptation. It may be

used to time the ingress streams to a common clock and frame alignment, or

to facilitate per-channel loopbacks.

• Provides a digital phase locked loop to reduce jitter on the receive clock.

• Supports polled or interrupt-driven servicing of the HDLC interface.

• Optionally extracts a datalink in the E1 national use bits.

• Extracts up to three HDLC links from arbitrary time slots to support the D-

channel for ISDN Primary Rate Interfaces and the C-channels for V5.1/V5.2

interfaces.

• Frames to the E1 signaling multiframe alignment when enabled and extracts

channel associated signaling. Alternatively, a common channel signaling data

link may be extracted from timeslot 16.

• Can be programmed to generate an interrupt on change of signaling state.

PM6388 Datasheet(PDF) 21 Page - PMC-Sierra, Inc