External Bus Interface
13-46 MPC823e REFERENCE MANUAL MOTOROLA
EXTERNAL BUS
13
INTERFACE
In reference to Figure 13-30, if the BI signal is asserted at the first beat of a burst, then the
remaining beats of the 16-byte transfer retry are recognized as a transfer error
acknowledge. Table 13-6 summarizes how the MPC823e recognizes the termination
signals provided by the slave device that the initiated transfer addressed.
Table 13-6. Termination Signal Protocol
TEA TA RETRY/KR ACTION
Asserted X X Transfer Error Termination
Negated Asserted X Normal Transfer Termination
Negated Negated Asserted Retry Transfer Termination / Kill
Reservation
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