PM5380-BI PMC-Sierra, Inc., PM5380-BI Datasheet - Page 53
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PM5380-BI
Manufacturer Part Number
PM5380-BI
Description
Network Interface, SATURN User Network Interface (8x155) Telecom Standard Product
Manufacturer
PMC-Sierra, Inc.
Datasheet
1.PM5380-BI.pdf
(440 pages)
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Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC- 2010299, Issue 2
Pin Name
RDAT[0]
RDAT[1]
RDAT[2]
RDAT[3]
RDAT[4]
RDAT[5]
RDAT[6]
RDAT[7]
RDAT[8]
RDAT[9]
RDAT[10]
RDAT[11]
RDAT[12]
RDAT[13]
RDAT[14]
RDAT[15]
RDAT[16]
RDAT[17]
RDAT[18]
RDAT[19]
RDAT[20]
RDAT[21]
RDAT[22]
RDAT[23]
RDAT[24]
RDAT[25]
RDAT[26]
RDAT[27]
RDAT[28]
RDAT[29]
RDAT[30]
RDAT[31]
RENB
Type
Output
Input
Pin
No.
AC31
AB27
AB28
AB29
AB30
AB31
AA28
AA29
AA30
Y27
Y28
Y29
Y30
Y31
W28
W29
W30
W31
V27
V28
V29
V30
V31
U27
U28
U29
U30
U31
R31
R30
R29
R28
AE31
S/UNI®-8x155 ASSP Telecom Standard Product Data Sheet
Function
The UTOPIA receive cell data (RDAT[31:0]) bus carries the
ATM cell octets that are read from the receive FIFO.
In UTOPIA operation, RDAT[31:0] is updated on the following
clock cycle after RENB is sampled low.
RDAT[31:0] is updated on the rising edge of RFCLK.
The POS-PHY receive packet data (RDAT[31:0]) bus carries
the POS packet octets that are read from the receive FIFO.
In POS-PHY operation, the packet data on RDAT[31:0] is
updated on the following clock cycle when RENB is sampled
low. The value on RDAT[7:0] is also used to report the PHY
channel when RSX is high. RDAT[31] is the first bit received
and RDAT[0] is the last bit received
RDAT[31:0] is updated on the rising edge of RFCLK.
The UTOPIA receive read enable (RENB) is used to initiate
reads from the receive FIFO. The system may de-assert
RENB if it is unable to accept more cells.
In UTOPIA operation, when RENB is sampled low,
RDAT[31:0], RRPTY and RSOC are updated on the following
RFCLK cycle. When RENB is sampled high, the information
on RDAT[31:0], RPRTY and RSOC_RSOP is held on the
next clock cycle.
RENB is also used for selected the channel to read data.
When RENB transitions from high to low, the channel
address on RADR[3:0] selects the channel to read from.
RENB is sampled on the rising edge of RFCLK.
Released
53
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