PM8610-BIAP PMC [PMC-Sierra, Inc], PM8610-BIAP Datasheet - Page 42

• Manufacturer Part Number: PM8610-BIAP
• Description: SBS Telecom Standard Product Data Sheet Preliminary
• Manufacturer: PMC [PMC-Sierra, Inc]

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2000168, Issue 3
Pin Name
Transmit Serial Data Interface (4 Signals)
TPWRK
TNWRK
TPPROT
TNPROT
Transmit SBI336 Interface (15 Signals)
TC1FP
Type
Analog
LVDS
Output
Analog
LVDS
Output
Output
Pin No.
K26
K25
H25
H26
A24
Transmit Working Serial Data. In SBI336 mode, the differential
transmit working serial data link (TPWRK/TNWRK) carries a
transmit 77.76 MHz SBI336 data stream to a downstream working
sink, in bit serial format, SBI336S.
In TelecomBus mode, TPWRK/TNWRK carries the transmit 77.76
MHz TelecomBus data stream to a downstream working sink, in bit
serial format.
Data on TPWRK/TNWRK is encoded in an 8B/10B format
extended from IEEE Std. 802.3. The 8B/10B character bit ‘a’ is
transmitted first and the bit ‘j’ is transmitted last.
TPWRK/TNWRK are nominally 777.6 Mbit/s data streams.
Transmit Protect Serial Data. In SBI336 mode, the differential
transmit protect serial data link (TPPROT/TNPROT) carries a
transmit 77.76 MHz SBI336 data stream to a downstream protect
sink, in bit serial format, SBI336S.
In TelecomBus mode, TPPROT/TNPROT carries the transmit
77.76 MHz TelecomBus data stream to a downstream protection
sink, in bit serial format.
Data on TPPROT/TNPROT is encoded in an 8B/10B format
extended from IEEE Std. 802.3. The 8B/10B character bit ‘a’ is
transmitted first and the bit ‘j’ is transmitted last.
TPPROT/TNPROT are nominally 777.6 Mbit/s data streams.
Transmit Serial SBI Frame Pulse. The transmit serial SBI frame
pulse signal (TC1FP) provides system timing of the transmit serial
interface. When using the transmit parallel interface, this signal
indicated the first C1 octet on the transmit SBI336 or TelecomBus.
Using the Transmit Serial Interface:
TC1FP is set high to indicate that the C1 frame boundary 8B/10B
character has been serialized out on the transmit working serial
data link (TPWRK/TNWRK) and the transmit protection serial data
link (TPPROT/ TNPROT). TC1FP is output every 4 frame for SBI
mode without CAS and for TelecomBus mode. TC1FP is output
every 48 frames for SBI mode with CAS.
Using the Transmit Parallel Interface:
In SBI/SBI336 mode, this signal also indicates multiframe
alignment which occurs every 4 frames, therefore this signal is
pulsed every fourth C1 octet to produce a 2KHz multiframe signal.
When using the SBI bus in synchronous mode the TC1FP signal
indicates T1 and E1 signaling multiframe alignment by pulsing on
48 SBI frame boundaries. This must be done if CAS is to be
switched along with the data.
In TelecomBus mode, this signal may also be pulsed to indicate
the J1 byte position and the byte following J1. The J1 byte position
is locked to an offset of either 0 or 522. The byte following J1 is
used to indicate multiframe alignment and is only pulsed once
every 4 frames marking the frame with the V1s.
TC1FP is updated on the rising edge of SYSCLK.
Function
SBS Telecom Standard Product Data Sheet
Preliminary
42