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Chapter 10 Pin Descriptions 75
31994A —1 August 2004 AMD Sempron™ Processor Model 10 with 256K L2 Cache Data Sheet
ZN and ZP Pins ZN (AC5) and ZP (AE5) are the push-pull compensation circuit
pins. In Push-Pull mode (selected by the SIP parameter
SysPushPull asserted), ZN is tied to V
CC_CORE
with a resistor
that has a resistance matching the impedance Z
0
of the
transmission line. ZP is tied to VSS with a resistor that has a
resistance matching the impedance Z
0
of the transmission line.