PRIXP423BB Intel, PRIXP423BB Datasheet - Page 37

IC NETWRK PROCESSR 266MHZ 492BGA

PRIXP423BB

Manufacturer Part Number
PRIXP423BB
Description
IC NETWRK PROCESSR 266MHZ 492BGA
Manufacturer
Intel
Datasheets

Specifications of PRIXP423BB

Processor Type
Network
Features
XScale Core
Speed
266MHz
Voltage
1.3V
Mounting Type
Surface Mount
Package / Case
492-BGA
Core Operating Frequency
533MHz
Package Type
BGA
Pin Count
492
Mounting
Surface Mount
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Operating Temperature Classification
Industrial
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
869741

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PRIXP423BB
Manufacturer:
Intel
Quantity:
10 000
Datasheet
Table 10.
UTOPIA-2 Interface (Sheet 1 of 2)
UTP_OP_CLK
UTP_OP_FCO
UTP_OP_SOC
UTP_OP_DATA[7:0]
UTP_OP_ADDR[4:0]
UTP_OP_FCI
UTP_IP_CLK
UTP_IP_FCI
UTP_IP_SOC
For a legend of the Type codes, see
Name
Reset
Power
On
Intel
Z
Z
Z
Z
Z
Z
Z
Z
Z
®
Reset
IXP42X Product Line and IXC1100 Control Plane Processor
VI
VI
VI
VI
VI
VI
Table 4 on page
Z
Z
Z
Type
O
O
O
O
I
I
I
I
I
30.
UTOPIA Transmit clock input. Also known as UTP_TX_CLK. This
signal is used to synchronize all UTOPIA-transmit outputs to the rising
edge of the UTP_OP_CLK.
This signal should be pulled low through a 10-KΩ resistor when not
being utilized in the system.
UTOPIA flow control output signal. Also known as the TXENB_N
signal.
Used to inform the selected PHY that data is being transmitted to the
PHY. Placing the PHY’s address on the UTP_OP_ADDR — and
bringing UTP_OP_FCO to logic 1, during the current clock — followed
by the UTP_OP_FCO going to a logic 0, on the next clock cycle,
selects which PHY is active in MPHY mode.
In SPHY configurations, UTP_OP_FCO is used to inform the PHY that
the processor is ready to send data.
Start of Cell. Also known as TX_SOC.
Active high signal is asserted when UTP_OP_DATA contains the first
valid byte of a transmitted cell.
UTOPIA output data. Also known as UTP_TX_DATA. Used to send
data from the processor to an ATM UTOPIA-Level-2-compliant PHY.
Transmit PHY address bus. Used by the processor when operating in
MPHY mode to poll and select a single PHY at any given time.
UTOPIA Output data flow control input: Also known as the
TXFULL/CLAV signal.
Used to inform the processor of the ability of each polled PHY to
receive a complete cell. For cell-level flow control in an MPHY
environment, TxClav is an active high tri-stateable signal from the
MPHY to ATM layer. The UTP_OP_FCI, which is connected to multiple
MPHY devices, will see logic high generated by the PHY, one clock
after the given PHY address is asserted — when a full cell can be
received by the PHY. The UTP_OP_FCI will see a logic low generated
by the PHY one clock cycle, after the PHY address is asserted — if a
full cell cannot be received by the PHY.
This signal should be tied low through a 10-KΩ resistor if not being
used.
UTOPIA Receive clock input. Also known as UTP_RX_CLK.
This signal is used to synchronize all UTOPIA-received inputs to the
rising edge of the UTP_IP_CLK.
This signal should be pulled low through a 10-KΩ resistor when not
being utilized in the system.
UTOPIA Input Data flow control input signal. Also known as
RXEMPTY/CLAV.
Used to inform the processor of the ability of each polled PHY to send a
complete cell. For cell-level flow control in an MPHY environment,
RxClav is an active high tri-stateable signal from the MPHY to ATM
layer. The UTP_IP_FCI, which is connected to multiple MPHY devices,
will see logic high generated by the PHY, one clock after the given PHY
address is asserted, when a full cell can be received by the PHY. The
UTP_IP_FCI will see a logic low generated by the PHY, one clock cycle
after the PHY address is asserted if a full cell cannot be received by the
PHY.
In SPHY mode, this signal is used to indicate to the processor that the
PHY has an octet or cell available to be transferred to the processor.
Should be pulled low through a 10-KΩ resistor when not being utilized
in the system.
Start of Cell. RX_SOC
Active-high signal that is asserted when UTP_IP_DATA contains the
first valid byte of a transmitted cell.
Should be pulled low through a 10-KΩ resistor when not being utilized
in the system.
Functional Signal Descriptions
Description
37

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