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®
Intel
855GME Chipset and Intel
Table 144.
Miscellaneous Signals Checklist
Checklist Items
SPKR
12.4.14
Serial ATA Checklist
Table 145.
Serial ATA Checklist
Checklist Items
SATA[0:1]RXN,
SATA[0:1]RXP
SATA[0:1]TXN,
SATA[0:1]TXP
SATACLKN
SATACLKP
SATALED#
SATARBIASN
SATARBIASP
12.4.15
IDE Checklist
Table 146.
IDE Checklist (Sheet 1 of 2)
Checklist Items
PDD[15:0],
SDD[15:0]
®
6300ESB ICH Embedded Platform Design Guide
Recommendations
See
Section 9.4.3
for more information.
Recommendations
No extra series termination
resistors or other pull-ups/pull-
downs are required.
No extra series termination
resistors or other pull-ups/pull-
downs are required.
Connect a 33 Ω series resistor
between the CK409 and this signal
Connect a 33 Ω series resistor
between the CK409 this signal
Recommend a weak external pull-
up to Vcc3.3
Short this signal with SATARBIASP
at package. Connect to a 24.9 Ω
±1% resister to GND.
Short this signal with SATARBIASN
at package. This signal can be
connected to the same 24.9 Ω ±1%
resistor only if SATARBIASP is not
used to connect the resistor to
ground.
Recommendations
No extra series termination
resistors or other pull-ups/pull-
downs are required.
PDD7/SDD7 does not require a
10 K Ω pull-down resistor.
Refer to ATA ATAPI-6 specification.
January 2007
Schematic Checklist Summary
Reason/Impact
Strap function: No Reboot (See the
6300ESB EDS for more information)
Has integrated pull-down. The integrated
pull-down is only enabled at boot/reset for
strapping functions; at all other times, the
pull-down is disabled.
Interface Not Used
May leave as no
connect
May leave as no
connect
May leave as no
connect
May leave as no
connect
May leave as no
Open Drain signal
connect
May leave as no
connect
See section
Section 9.1.1.5
May leave as no
connect
Interface Not Used
These signals have
integrated series resistors.
NOTE: Simulation data
May leave as no
connect
Reason/Impact
Reason/Impact
indicates that the
integrated series
termination
resistors are a
nominal 33 Ω but
may range from
21 Ω to 75 Ω .
295
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