Freescale Semiconductor MPC8260 1.3.1 Signals

Overview
MPC8260 PowerQUICC II Family Reference Manual, Rev. 2
1-10 Freescale Semiconductor
PowerQUICC II initialization code requires changes from the MPC860 initialization code (Freescale
provides reference code).
1.3.1 Signals
Figure 1-2 shows PowerQUICC II signals grouped by function. Note that many of these signals are
multiplexed and this figure does not indicate how these signals are multiplexed.
NOTE
A bar over a signal name indicates that the signal is active low—for
example, BB (bus busy). Active-low signals are referred to as asserted
(active) when they are low and negated when they are high. Signals that are
not active low, such as TSIZ[0–3] (transfer size signals) are referred to as
asserted when they are high and negated when they are low.