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参数资料
| 型号： | YF80532KC0412M |
| 厂商： | INTEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 2000 MHz, MICROPROCESSOR, CPGA603 |
| 封装： | MICRO, PGA-603 |
| 文件页数： | 25/129页 |
| 文件大小： | 1528K |
| 代理商： | YF80532KC0412M |
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120
Datasheet
D[63:0]#
I/O
D[63:0]# (Data) are the data signals. These signals provide a 64-bit data path
between the processor system bus agents, and must connect the appropriate pins
on all such agents. The data driver asserts DRDY# to indicate a valid data transfer.
D[63:0]# are quad-pumped signals, and will thus be driven four times in a common
clock period. D[63:0]# are latched off the falling edge of both DSTBP[3:0]# and
DSTBN[3:0]#. Each group of 16 data signals correspond to a pair of one DSTBP#
and one DSTBN#. The following table shows the grouping of data signals to strobes
and DBI#.
Furthermore, the DBI# pins determine the polarity of the data signals. Each group
of 16 data signals corresponds to one DBI# signal. When the DBI# signal is active,
the corresponding data group is inverted and therefore sampled active high.
DBI[3:0]#
I/O
DBI[3:0]# (Data Bus Inversion) are source synchronous and indicate the polarity of
the D[63:0]# signals. The DBI[3:0]# signals are activated when the data on the data
bus is inverted. The bus agent will invert the data bus signals if more than half the
bits, within a 16-bit group, change logic level in the next cycle.
DBSY#
I/O
DBSY# (Data Bus Busy) is asserted by the agent responsible for driving data on the
processor system bus to indicate that the data bus is in use. The data bus is
released after DBSY# is deasserted. This signal must connect the appropriate pins
on all processor system bus agents.
DEFER#
I
DEFER# (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 I/O agent. This signal must connect the appropriate
pins of all processor system bus agents.
DP[3:0]#
I/O
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 of all processor system bus agents.
DRDY#
I/O
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 deasserted to insert idle clocks. This signal must connect the appropriate
pins of all processor system bus agents.
DSTBN[3:0]#
I/O
Data strobe used to latch in D[63:0]#.
DSTBP[3:0]#
I/O
Data strobe used to latch in D[63:0]#.
Table 52. Signal Definitions (Sheet 4 of 10)
Name
Type
Description
Data Group
DSTBN/
DSTBP
DBI#
D[15:0]#
0
D[31:16]#
1
D[47:32]#
2
D[63:48]#
3
DBI[3:0] Assignment To Data Bus
Bus Signal
Data Bus Signals
DBI0#
D[15:0]#
DBI1#
D[31:16]#
DBI2#
D[47:32]#
DBI3#
D[63:48]#
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