PRIXP425BB Intel, PRIXP425BB Datasheet - Page 107
PRIXP425BB
Manufacturer Part Number
PRIXP425BB
Description
IC NETWRK PROCESSR 266MHZ 492BGA
Manufacturer
Intel
Specifications of PRIXP425BB
Processor Type
Network
Features
XScale Core
Speed
266MHz
Voltage
1.3V
Mounting Type
Surface Mount
Package / Case
492-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
869046
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5.5.2.7.1
5.5.2.8
Figure 34.
EX_IOWAIT_N
The EX_IOWAIT_N signal is available to be shared by devices attached to Chip Selects 0 through
7 and is used as required by slow devices.
If the external device asserts EX_IOWAIT_N during the strobe phase of a read transfer, the
controller will hold in that phase until the EX_IOWAIT_N goes false. At that time, the controller
will immediately transition to the hold phase regardless of the setting of the programming
parameter (T3) for the strobe phase.
The EX_IOWAIT_N signal only affects the interface during the strobe phase of a read transfer. If
Chip Selects 4 through 7 are configured in HPI mode of operation, each chip select will have a
corresponding HRDY signal called EX_RDY. The polarity of the ready signal is programmable.
Chip Select 4 corresponds to EX_RDY signal 0 and Chip Select 7 corresponds to EX_RDY signal
3.
High-Speed, Serial Interfaces
High-Speed, Serial Timings
hss_(tx or rx)frame
hss_(tx or rx)frame
hss_(tx or rx)frame
hss_(tx or rx)frame
(Negative edge)
(Negative edge)
(Negative edge)
(Negative edge)
(Positive edge)
(Positive edge)
(Positive edge)
(Positive edge)
As Outputs:
hss_ rxdata
hss_ rxdata
hss_ txdata
hss_ txdata
As Inputs:
hss_rxclk
hss_txclk/
1
Intel
®
IXP42X Product Line and IXC1100 Control Plane Processor
T5
T1
T6
Valid Data
Valid Data
T3
T7
Valid Data
Valid Data
T2
T4
T8
Electrical Specifications
T9
A9594-01
107
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