PM5364 pmc-sierra, PM5364 Datasheet - Page 50

• Manufacturer Part Number: PM5364
• Description: Tupp 2488 Assp Telecom Standard
• Manufacturer: pmc-sierra

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2011334, Issue 7
Pin Name
LIWSEL
SEWSEL
IJ0
Type
Input
Input
Input
Pin No.
C15
AN30
B15
TUPP™ 2488 ASSP Telecom Standard Product Data Sheet
Function
Line Side Ingress Working Serial Data Select.
The line side ingress working serial data select
signal, LIWSEL, selects between sourcing line
ingress data from the line ingress working serial
data link, LIWORK_P[4:1]/LIWORK_N[4:1], or the
line ingress protect serial data link,
LIPROT_P[4:1]/LIPROT_N[4:1]. When LIWSEL is
set low, the working serial bus is selected. When
LIWSEL is set high, the protect serial bus is
selected. LIWSEL is sampled at the J0(C1) byte
location as defined by the ingress serial interface
frame pulse signal, IJ0, in serial mode. LIWSEL is
sampled at the J0 position indicated by IJ0 and
LINE_INGRESS_REF_DLY[13:0] in parallel mode.
Changes to the selection of the working and protect
serial streams are synchronized to the transport
frame boundary of the next frame following the next
frame (i.e. two frame boundaries after LIWSEL is
sampled).
LIWSEL is sampled on the rising edge of REFCLK.
System Side Egress Working Serial Data Select.
The system side egress working serial data select
signal, SEWSEL, selects between sourcing system
egress data from the system egress working serial
data link, SEWORK_P[8:1]/SEWORK_N[8:1], or
the system egress protect serial data link,
SEPROT_P[8:1]/SEPROT_N[8:1]. When SEWSEL
is set low, the working serial bus is selected. When
SEWSEL is set high, the protect serial bus is
selected. SEWSEL is sampled at the J0(C1) byte
location as defined by the egress serial interface
frame pulse signal, EJ0. Changes to the selection
of the working and protect serial streams are
synchronized to the frame boundary of the next
frame. SEWSEL must not be changed within two
clocks of the sample point (J0 byte location defined
by EJ0).
SEWSEL is sampled on the rising edge of
REFCLK.
Ingress J0(C1) Frame Pulse. The ingress bus
timing signal, IJ0, is a system reference J0(C1)
pulse that uses a programmable offset to locate
line ingress J0(C1) when using the Line Serial
Inputs and the line ingress J0 when using the
parallel bus.
IJ0 should occur every frame or multiple thereof.
IJ0 is sampled on the rising edge of REFCLK.
Released
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