STANDARD PRODUCT
DATASHEET
PMC-1981125
ISSUE 7
PM8315 TEMUX
HIGH DENSITY T1/E1 FRAMER WITH
INTEGRATED VT/TU MAPPER AND M13 MUX
• Supports the M23 and C-bit parity DS3 formats.
• Standalone unchannelized DS3 framer mode for access to the entire DS3
payload.
• When configured to operate as a DS3 Framer, gapped transmit and receive
clocks can be optionally generated for interface to link layer devices which
only need access to payload data bits.
• DS3 Transmit clock source can be selected from either an external oscillator
or from the receive side clock (loop-timed).
• Provides a SONET/SDH Add/Drop bus interface with integrated VT1.5, TU-
11, VT2 and TU-12 mapper for T1and E1 streams. Also provides a DS3
mapper.
• Register level compatibility with the PM4388 TOCTL Octal T1 Framer, the
PM6388 EOCTL Octal E1 Framer, the PM4351 COMET E1/T1 transceiver
and the PM8313 D3MX M13 Multiplexer/Demultiplexer.
• Provides a generic 8-bit microprocessor bus interface for configuration,
control and status monitoring. Provides a standard 5 signal P1149.1 JTAG
test port for boundary scan board test purposes.
• Low power 2.5V/3.3V CMOS technology. All pins are 5V tolerant.
• 324-pin fine pitch PBGA package (23mm x 23mm). Supports industrial
temperature range (-40oC to 85oC) operation.
Each one of 28 T1 receiver sections:
• Frames to DS-1 signals in SF and ESF formats.
• Frames to TTC JT-G.704 multiframe formatted J1 signals. Supports the
alternate CRC-6 calculation for Japanese applications.
• Accepts gapped data streams to support higher rate demultiplexing.
• Provides Red, Yellow, and AIS alarm integration.
• Provides ESF bit-oriented code detection and an HDLC/LAPD interface for
terminating the ESF facility data link.
• Indicates signaling state change, and two superframes of signaling debounce
on a per-DS0 basis.
PROPRIETARY AND CONFIDENTIAL
3