External Bus Interface (EBI)
MPC5565 Microcontroller Reference Manual, Rev. 1.0
Freescale Semiconductor
12-57
12.4.2.10.3
Bus Transfers Initiated by the EBI in External Master Mode
The flow and timing for EBI-mastered transactions in external master mode is identical to that described
in earlier sections for single master mode. The following flow and timing diagrams show the basic single
beat read case. The remaining cases (writes, bursts, etc.) can be observed in
Section 12.4.2.4, “Single-Beat
,” and
Section 12.4.2.5, “Burst Transfer
.”
Figure 12-38. Basic Flow Diagram of an EBI Read Access in External Master Mode (EARB = 0)
Slave
Receives address
Yes
No
Receives data
Drives data
Asserts
transfer acknowledge (TA)
Asserts
transfer acknowledge (TA)
CS access
?
Master (EBI)
Summary of Contents for MPC5565
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