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參數(shù)資料
| 型號： | KC80524NY450128 |
| 英文描述： | Microprocessor |
| 中文描述： | 微處理器 |
| 文件頁數(shù)： | 65/81頁 |
| 文件大?。?/td> | 598K |
| 代理商： | KC80524NY450128 |
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Mobile Intel
Celeron Processor (0.18μ) in BGA2 and Micro-PGA2 Packages
Order Number#249563-001
Datasheet
65
AP[1:0]# (I/O - GTL+)
The AP[1:0]# (Address Parity) signals are driven by the request initiator along with ADS#,
A[35:3]#, REQ[4:0]# and RP#. AP1# covers A[35:24]#. AP0# covers A[23:3]#. A correct parity
signal is high if an even number of covered signals are low and low if an odd number of covered
signals are low. This allows parity to be high when all the covered signals are high. AP[1:0]#
should be connected to the appropriate pins/balls on both agents on the system bus.
BCLK (I - 2.5V Tolerant)
The BCLK (Bus Clock) signal determines the system bus frequency. Both system bus agents must
receive this signal to drive their outputs and latch their inputs on the BCLK rising edge. All
external timing parameters are specified with respect to the BCLK signal.
BERR# (I/O - GTL+)
The BERR# (Bus Error) signal is asserted to indicate an unrecoverable error without a bus
protocol violation. It may be driven by either system bus agent and must be connected to the
appropriate pins/balls of both agents, if used. However, the mobile Intel Celeron processors do not
observe assertions of the BERR# signal.
BERR# assertion conditions are defined by the system configuration. Configuration options
enable the BERR# driver as follows:
Enabled or disabled
Asserted optionally for internal errors along with IERR#
Asserted optionally by the request initiator of a bus transaction after it observes an error
Asserted by any bus agent when it observes an error in a bus transaction
BINIT# (I/O - GTL+)
The BINIT# (Bus Initialization) signal may be observed and driven by both system bus agents and
must be connected to the appropriate pins/balls of both agents, if used. If the BINIT# driver is
enabled during the power-on configuration, BINIT# is asserted to signal any bus condition that
prevents reliable future information.
If BINIT# is enabled during power-on configuration, and BINIT# is sampled asserted, all bus state
machines are reset and any data which was in transit is lost. All agents reset their rotating ID for
bus arbitration to the state after reset, and internal count information is lost. The L1 and L2 caches
are not affected.
If BINIT# is disabled during power-on configuration, a central agent may handle an assertion of
BINIT# as appropriate to the Machine Check Architecture (MCA) of the system.
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