Motorola MPC823e Reference Manual page 317

External Bus Interface
CLKOUT
BR
BG
BB
A[6:31]
RD/WR
TSIZ[0:1],AT[0:3]
BURST
TS
DATA
TA
Figure 13-4. Single Beat Read Cycle–Basic Timing–Zero Wait States
13-10
RECEIVE BUS GRANT AND BUS BUSY NEGATED
ASSERT BB, DRIVE ADDRESS AND ASSERT TS
MPC823e REFERENCE MANUAL
DATA IS VALID
MOTOROLA