PM8611-BIAP PMC [PMC-Sierra, Inc], PM8611-BIAP Datasheet - Page 25

• Manufacturer Part Number: PM8611-BIAP
• Manufacturer: PMC [PMC-Sierra, Inc]

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2010883, Issue 2
Pin Name
Incoming SBI Bus (56 Signals)
IC1FP
IDATA[7]
IDATA[6]
IDATA[5]
IDATA[4]
IDATA[3]
IDATA[2]
IDATA[1]
IDATA[0]
IDP
Type
Input
Input
Input
Pin
No.
F12
E11
D14
D12
D13
C14
C12
C13
B14
E14
Function
Incoming C1 Frame Pulse (IC1FP). This signal indicates the first
C1 octet on the incoming SBI336 or TelecomBus.
In 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 2 KHz multiframe signal. The frame pulse does not
need to be repeated every 2 KHz as the SBSLITE will flywheel in
its absence.
When using the SBI bus in synchronous mode the IC1FP signal
can be used to indicate T1 and E1 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 must be locked to an
offset of either 0 or 522. The byte following J1 is used to indicate
multiframe alignment and should only pulse once every 4 frames
marking the frame with the V1s.
IC1FP is sampled on the rising edge of SREFCLK.
Incoming Bus Data (IDATA[7:0]). The Incoming data bus,
IDATA[7:0], is a time division multiplexed buses which transports
tributaries by assigning them to fixed octets within the SBI336 or
TelecomBus structure.
Multiple SBI336 devices can drive this bus at uniquely assigned
tributary columns within the SBI/SBI336 bus structure.
IDATA[7:0] is sampled on the rising edge of SREFCLK.
Incoming Bus Data Parity (IDP). The Incoming data parity signal
carries the even or odd parity for the Incoming bus. In SBI336
modes, the parity calculation encompasses the IDATA[7:0], IPL
and IV5 signals. In TelecomBus mode, the parity calculation
encompasses the IDATA[7:0] and optionally the IC1FP and IPL
signals.
Multiple SBI336 devices can drive this signal at uniquely assigned
tributary columns within the SBI336 bus structure. This parity signal
is intended to detect multiple sources in the column assignment.
IDP is sampled on the rising edge of SREFCLK.
SBSLITE™ Telecom Standard Product Data Sheet
Preliminary
24