参数资料
型号: B80547RE083256
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 3060 MHz, MICROPROCESSOR, PBGA775
封装: FLIP CHIP, LGA-775
文件页数: 62/94页
文件大小: 2796K
代理商: B80547RE083256
Datasheet
65
Land Listing and Signal Descriptions
DEFER#
Input
DEFER# is asserted by an agent to indicate that a transaction cannot be
guaranteed in-order completion. Assertion of DEFER# is normally the
responsibility of the addressed memory or Input/Output agent. This signal
must connect the appropriate pins/lands of all processor FSB agents.
DP[3:0]#
Input/
Output
DP[3:0]# (Data Parity) provide parity protection for the D[63:0]# signals.
They are driven by the agent responsible for driving D[63:0]#, and must
connect the appropriate pins/lands of all processor FSB agents.
DRDY#
Input/
Output
DRDY# (Data Ready) is asserted by the data driver on each data transfer,
indicating valid data on the data bus. In a multi-common clock data
transfer, DRDY# may be de-asserted to insert idle clocks. This signal must
connect the appropriate pins/lands of all processor FSB agents.
DSTBN[3:0]#
Input/
Output
Data strobe used to latch in D[63:0]#.
DSTBP[3:0]#
Input/
Output
Data strobe used to latch in D[63:0]#.
EDRDY#
Input
This signal indicates to the processor that the memory controller is about to
drive data on the bus based on a read request. The signal is driven from
the memory controller one BCLK[1:0] prior to data being driven on the bus.
EDRDY# is not a feature of the Celeron D processor in the 775-land
package. It is included here for future processor compatibility.
FERR#/PBE#
Output
FERR#/PBE# (Floating Point Error/Pending Break Event) is a multiplexed
signal and its meaning is qualified by STPCLK#. When STPCLK# is not
asserted, FERR#/PBE# indicates a floating-point error and will be asserted
when the processor detects an unmasked floating-point error. When
STPCLK# is not asserted, FERR#/PBE# is similar to the ERROR# signal
on the Intel 387 coprocessor, and is included for compatibility with systems
using MS-DOS*-type floating-point error reporting. When STPCLK# is
asserted, an assertion of FERR#/PBE# indicates that the processor has a
pending break event waiting for service. The assertion of FERR#/PBE#
indicates that the processor should be returned to the Normal state. For
additional information on the pending break event functionality, including
the identification of support of the feature and enable/disable information,
refer to volume 3 of the Intel Architecture Software Developer's Manual and
the Intel Processor Identification and the CPUID Instruction application
note.
GTLREF[1:0]
Input
GTLREF0 determines the signal reference level for GTL+ input signals.
GTLREF1 is not a feature of the Celeron D processor in the 775-Land
package. It is included here for future processor compatibility. GTLREF0 is
used by the GTL+ receivers to determine if a signal is a logical 0 or logical
1.
Table 4-3. Signal Description (Sheet 4 of 9)
Name
Type
Description
Signals
Associated Strobe
D[15:0]#, DBI0#
DSTBN0#
D[31:16]#, DBI1#
DSTBN1#
D[47:32]#, DBI2#
DSTBN2#
D[63:48]#, DBI3#
DSTBN3#
Signals
Associated Strobe
D[15:0]#, DBI0#
DSTBP0#
D[31:16]#, DBI1#
DSTBP1#
D[47:32]#, DBI2#
DSTBP2#
D[63:48]#, DBI3#
DSTBP3#
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