參數(shù)資料
型號(hào): Pentium II 333
廠商: Intel Corp.
英文描述: Processor with On-Die Cache Low-Power Module(帶片上緩存低能量模塊的處理器)
中文描述: 而對(duì)整個(gè)處理器模高速緩存低功率模塊(帶片上緩存低能量模塊的處理器)
文件頁數(shù): 12/50頁
文件大?。?/td> 1123K
代理商: PENTIUM II 333
Pentium
II
Processor with On-Die Cache – Low-Power Module
12
Datasheet
3.1.4
PCI (58 Signals)
Table 4 lists the PCI interface signals.
ST[2:0]
O
AGP
V_3
Status Bus:
Provides information from the arbiter to an AGP
Master on what it may do. These bits only have meaning when
GGNT is asserted.
ADSTB[B:A]
I/O
AGP
V_3
AD Bus Strobes:
Provide timing for double-clocked data on the
GAD bus. The agent providing data drives these signals. These are
identical copies of each other.
SBSTB
I
AGP
V_3
Sideband Strobe:
Provides timing for a sideband bus. The
SBA[7:0] (AGP master) drives the sideband strobe.
Table 3. AGP Signal Descriptions (Sheet 2 of 2)
Name
Type
Voltage
Description
Table 4. PCI Signal Descriptions (Sheet 1 of 2)
Name
Type
Voltage
Description
AD[31:0]
I/O
PCI
V_3
Address/Data:
The standard PCI address and data lines. The
address is driven with FRAME# assertion and data is driven or
received in the following clocks.
C/BE[3:0]#
I/O
PCI
V_3
Command/Byte Enable:
The command is driven with FRAME#
assertion and byte enables corresponding to supplied or requested
data are driven on the following clocks.
FRAME#
I/O
PCI
V_3
Frame:
Assertion indicates the address phase of a PCI transfer.
Negation indicates that the cycle initiator desires one more data
transfer.
DEVSEL#
I/O
PCI
V_3
Device Select:
the 82443BX Host Bridge/Controller drives this
signal when a PCI initiator is attempting to access DRAM.
DEVSEL# is asserted at medium decode time.
IRDY#
I/O
PCI
V_3
Initiator Ready:
Asserted when the initiator is ready for data
transfer.
TRDY#
I/O
PCI
V_3
Target Ready:
Asserted when the target is ready for a data
transfer.
STOP#
I/O
PCI
V_3
Stop:
Asserted by the target to request the master to stop the
current transaction.
PLOCK#
I/O
PCI
V_3
Lock:
Indicates an exclusive bus operation and may require
multiple transactions to complete. When LOCK# is asserted,
nonexclusive transactions may proceed. The 82443BX supports
lock for processor initiated cycles only. PCI initiated locked cycles
are not supported.
REQ[4:0]#
I
PCI
V_3
PCI Request:
PCI master requests for PCI.
GNT[4:0]#
O
PCI
V_3
PCI Grant:
Permission is given to the master to use PCI.
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