参数资料
型号: RK80532RC056128
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 2400 MHz, MICROPROCESSOR, CPGA478
封装: FLIP CHIP, PGA2-478
文件页数: 74/99页
文件大小: 4142K
代理商: RK80532RC056128
76
Datasheet
Pin Listing and Signal Definitions
IGNNE#
Input
IGNNE# (Ignore Numeric Error) is asserted to force the processor to ignore a
numeric error and continue to execute noncontrol floating-point instructions. If
IGNNE# is deasserted, the processor generates an exception on a noncontrol
floating-point instruction if a previous floating-point instruction caused an error.
IGNNE# has no effect when the NE bit in control register 0 (CR0) is set.
IGNNE# is an asynchronous signal. However, to ensure recognition of this signal
following an Input/Output write instruction, it must be valid along with the TRDY#
assertion of the corresponding Input/Output Write bus transaction.
INIT#
Input
INIT# (Initialization), when asserted, resets integer registers inside the processor
without affecting its internal caches or floating-point registers. The processor
then begins execution at the power-on Reset vector configured during power-on
configuration. The processor continues to handle snoop requests during INIT#
assertion. INIT# is an asynchronous signal and must connect the appropriate
pins of all processor system bus agents.
If INIT# is sampled active on the active to inactive transition of RESET#, the
processor executes its Built-in Self-Test (BIST).
ITPCLKOUT[1:0]
Output
ITPCLKOUT[1:0] is an uncompensated differential clock output that is a delayed
copy of BCLK[1:0], which is an input to the processor. This clock output can be
used as the differential clock into the ITP port that is designed onto the
motherboard. If ITPCLKOUT[1:0] outputs are not used, they must be terminated
properly. Refer to Section 2.5 for additional details and termination requirements.
Refer to the ITP700 Debug Port Design Guide for details on implementing a
debug port.
ITP_CLK[1:0]
Input
ITP_CLK[1:0] are copies of BCLK that are used only in processor systems where
no debug port is implemented on the system board. ITP_CLK[1:0] are used as
BCLK[1:0] references for a debug port implemented on an interposer. If a debug
port is implemented in the system, ITP_CLK[1:0] are no connects in the system.
These are not processor signals.
LINT[1:0]
Input
LINT[1:0] (Local APIC Interrupt) must connect the appropriate pins of all APIC
Bus agents. When the APIC is disabled, the LINT0 signal becomes INTR, a
maskable interrupt request signal, and LINT1 becomes NMI, a nonmaskable
interrupt. INTR and NMI are backward compatible with the signals of those
names on the Intel Pentium processor. Both signals are asynchronous.
Both of these signals must be software configured via BIOS programming of the
APIC register space to be used either as NMI/INTR or LINT[1:0]. Because the
APIC is enabled by default after Reset, operation of these pins as LINT[1:0] is
the default configuration.
LOCK#
Input/
Output
LOCK# indicates to the system that a transaction must occur atomically. This
signal must connect the appropriate pins of all processor system bus agents. For
a locked sequence of transactions, LOCK# is asserted from the beginning of the
first transaction to the end of the last transaction.
When the priority agent asserts BPRI# to arbitrate for ownership of the processor
system bus, it will wait until it observes LOCK# deasserted. This enables
symmetric agents to retain ownership of the processor system bus throughout
the bus locked operation and ensure the atomicity of lock.
MCERR#
Input/
Output
MCERR# (Machine Check Error) is asserted to indicate an unrecoverable error
without a bus protocol violation. It may be driven by all processor system bus
agents.
MCERR# assertion conditions are configurable at a system level. Assertion
options are defined by the following options:
Enabled or disabled.
Asserted, if configured, for internal errors along with IERR#.
Asserted, if configured, 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.
For more details regarding machine check architecture, Refer to the IA-32
Software Developer’s Manual, Volume 3: System Programming Guide
.
Table 36. Signal Description (Sheet 5 of 8)
Name
Type
Description
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