Motorola MPC8260 User Manual
MOTOROLA
Chapter 6. External Signals
6-1
Chapter 6
External Signals
External Signals
60
60
This chapter describes the MPC8260 external signals. A more detailed description of 60x
bus signals is provided in Chapter 8, ÒThe 60x Bus.Ó
bus signals is provided in Chapter 8, ÒThe 60x Bus.Ó
6.1 Functional Pinout
Figure 6-1 shows MPC8260 signals grouped by function. Note that many of these signals
are multiplexed and this Þgure does not indicate how these signals are multiplexed.
are multiplexed and this Þgure does not indicate how these signals are multiplexed.
NOTE
A bar over a signal name indicates that the signal is active
lowÑfor 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[0Ð1] (transfer size signals) are referred to as asserted
when they are high and negated when they are low.
lowÑfor 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[0Ð1] (transfer size signals) are referred to as asserted
when they are high and negated when they are low.