Mobile Intel Pentium 4 Processor - M and Intel 845MP/MZ Chipset Platform Design Guide

Mobile Intel
®
Pentium
®
4 Processor-M and Intel
®
845MP/845MZ Chipset Platform
204 Design Guide
R
12.13. USB Checklist
Table 97.Resistor Recommendations
USB – Resistor Recommendations
Signal System
Pull-up/Pull-down
Ω
ΩΩ
Ω Series
Damping
Notes 9
99
9
USB_PN[5:0],
USB_PP[5:0]
Place near ICH3-M
USB_OC[5:0] Pull-up to
V3.3Always
10 kΩ Pull-up voltage rail will depend on
usage
NOTE: Default tolerance for resistors is ± 5% unless otherwise specified.
Table 98. Decoupling Recommendations
USB – Decoupling Recommendations*
Signal Configuration F Qty Notes 9
99
9
USBPWRCONN
[D:A]
Pull-down to GND 0.1 µF
100 µF_16V
1 ea.
+V5_USB[2:1] Pull-down to GND 0.01 µF 1 ea.
NOTE: *All decoupling guidelines are recommendations based on our reference board design. Customers will need
to take their layout and PCB board design into consideration when deciding on their overall decoupling
solution.
12.14. FWH Checklist
Table 99. Resistor Recommendations
FWH – Resistor Recommendations
Signal System
Pull-up/Pull-down
Ω
ΩΩ
Ω Series
Damping
Notes 9
99
9
FGPI[4:0] Configuration different
depending on
implementation.
Terminate to GND with 10
k
Ω resistor if not used.
INIT# Pull-up to V3_3S See note Configuration depends on
FWH implementation
IC Pull-down to GND 10 kΩ