Motorola MPC533 Reference Manual page 336

Bus Operations
Master
1. Request Bus (BR)
2. Receive bus grant (BG) from arbiter
3. Assert Bus Busy (BB) if No Other Master is Driving
4. Assert Transfer Start (TS)
5. Drive Address and Attributes
6. Drive BURST Asserted
ADDR[28:29] mod 4 =?
Assert BDIP
Receive Data
= 1
Assert BDIP
Receive Data
= 2
Assert BDIP
Receive Data
= 3
Negate Burst Data in Progress (BDIP)
Receive Data
Figure 9-12. Basic Flow Diagram Of A Burst-Read Cycle
9-20
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
= 0
= 4
MPC533 Reference Manual
Slave
Receive Address
Return Data
Assert Transfer Acknowledge (TA)
BDIP Asserted
Yes
Return Data
Assert Transfer Acknowledge (TA)
BDIP Asserted
Yes
Return Data
Assert Transfer Acknowledge (TA)
BDIP Asserted
Yes
Return Data
Assert Transfer Acknowledge (TA)
BDIP Asserted
Yes
No
Drive Last Data
& Assert TA
Drive Last Data
No
& Assert TA
No
Drive Last Data
& Assert TA
No
Drive Last Data
& Assert TA
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