PM5364 pmc-sierra, PM5364 Datasheet - Page 55
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PM5364
Manufacturer Part Number
PM5364
Description
Tupp 2488 Assp Telecom Standard
Manufacturer
pmc-sierra
Datasheet
1.PM5364.pdf
(306 pages)
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Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2011334, Issue 7
Pin Name
IDP[4]
IDP[3]
IDP[2]
IDP[1]
IPL[4]
IPL[3]
IPL[2]
IPL[1]
IJ0J1[4]
IJ0J1[3]
IJ0J1[2]
IJ0J1[1]
Type
Input
Input
Input
Pin No.
A4
B8
D11
B14
B5
A8
C11
C14
A5
E9
B11
E14
TUPP™ 2488 ASSP Telecom Standard Product Data Sheet
Function
Ingress Bus Data Parity. The Ingress Bus data
parity signal, IDP[4:1], carries the parity of the
ingress signals. The parity calculation
encompasses the IDATA_N[7:0] bus and optionally
the IJ0J1[N] and IPL[N] signals. IJ0J1[N] and
IPL[N] can be included in the parity calculation by
setting the INGJ0J1PAREN and INGPLPAREN bits
in the Parity Control register high, respectively.
Odd parity is selected by setting the
INGODDPAREN bit in the Parity Control register
high and even parity is selected by setting the
INGODDPAREN bit low.
IDP[4:1] is sampled on the rising edge of REFCLK.
Ingress Bus Payload. The active high Ingress Bus
payload signal, IPL[4:1], indicates when the
IDATA[4:1][7:0] bus is carrying a payload byte.
IPL[4:1] identifies the bytes on the incoming stream
IDATA[4:1][7:0] that are part of the synchronous
payload envelope. IPL[4:1] is set high during path
overhead and payload bytes and low during
transport overhead bytes.
When the H3 byte contains part of the synchronous
payload envelope due to a negative pointer
justification, IPL[4:1] is set high; when a byte is a
dummy byte due to a positive pointer justification,
IPL[4:1] is set low. Also, IPL[4:1] is set high during
bytes of the two fixed stuff columns in an STM-1
containing TU3’s, as these stuff bytes are aligned
relative to the VC4’s J1 byte).
IPL[4:1] is sampled on the rising edge of REFCLK.
Ingress J0/J1 Frame Pulse. The Ingress J0/J1
frame pulse, IJ0J1[4:1], identifies the transport
envelope and synchronous payload envelope
frame boundaries on the ingress SONET/SDH
stream.
IJ0J1[N] is set high while IPL[N] is low to mark the
first J0(C1) byte of the transport envelope frame on
the IDATA_N[7:0] bus. IJ0J1[N] is set high while
IPL[N] is high to mark each J1 byte of the
synchronous payload envelope(s) on the
IDATA_N[7:0] bus. IJ0J1[N] must be present at
every occurrence of the first J0(C1) and all J1
bytes.
The J0 byte on all 4 streams must be coincident.
IJ0J1[4:1] is sampled on the rising edge of
REFCLK.
Released
55
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