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Datasheet
23
Electrical Specifications
NOTES:
1.
Refer to
for signal descriptions and termination requirements.
2.
In processor systems where there is no debug port implemented on the system board,
these signals are used to support a debug port interposer. In systems with the debug port
implemented on the system board, these signals are no connects.
3.
BPM[2:1]# and PRDY# are AGTL+ output only signals.
4.
PROCHOT# signal type is open drain output and CMOS input.
5.
On die termination differs from other AGTL+ signals, please refer to your Platform Design
Guidelines for up-to-date recommendations.
6.
When paired with a chipset limited to 32-bit addressing, A[35:32] should remain
unconnected.
3.8
CMOS Signals
CMOS input signals are shown in
. Legacy output FERR#, IERR# and other non-
AGTL+ signals (THERMTRIP# and PROCHOT#) utilize Open Drain output buffers. These
signals do not have setup or hold time specifications in relation to BCLK[1:0]. However,
all of the CMOS signals are required to be asserted for at least three BCLKs in order for
the processor to recognize them.
3.9
Maximum Ratings
specifies absolute maximum and minimum ratings. If the processor stays within
the defined functional operation limits, functionality and long-term reliability can be
expected.
Caution:
At conditions exceeding absolute maximum and minimum ratings, neither functionality
nor long-term reliability can be expected.
Warning:
Precautions should always be taken to avoid high static voltages or electric fields.
AGTL+ Strobes
Synchronous
to BCLK[1:0]
ADSTB[1:0]#, DSTBP[3:0]#, DSTBN[3:0]#
CMOS Input
Asynchronous
A20M#, DPRSTP#, DPSLP#, IGNNE#, INIT#,
LINT0/INTR, LINT1/NMI, PWRGOOD, SMI#, SLP#,
STPCLK#
Open Drain Output
Asynchronous FERR#, IERR#, THERMTRIP#
Open Drain I/O
Asynchronous PROCHOT#
4
CMOS Output
Asynchronous PSI#, VID[6:0], BSEL[2:0]
CMOS Input
Synchronous
to TCK
TCK, TDI, TMS, TRST#
Open Drain Output
Synchronous
to TCK
TDO
FSB Clock
Clock
BCLK[1:0]
Power/Other
COMP[3:0], DBR#
2
, GTLREF, RSVD, TEST2,
TEST1, THERMDA, THERMDC, V
CC
, V
CCA
, V
CCP
,
V
CC_SENSE
, V
SS
, V
SS_SENSE
Table 4.
FSB Pin Groups (Sheet 2 of 2)
Signal Group
Type
Signals
1
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