Datasheet

Bus Operation
6-38 MCF5206e USER’S MANUAL MOTOROLA
Figure 6-22. Word-, Longword-, and Line-Write Transfer Flowchart with
Asynchronous Termination
MCF5206e SYSTEM
1. DRIVE ADDRESS ON A[27:0]
2. DRIVE R/W
TO WRITE (R/W = 0)
3. DRIVE SIZ[1:0] TO INDICATE WORD, LONGWORD OR LINE
4. DRIVE TT[1:0] AND ATM TO INDICATE APPROPRIATE ACCESS
TYPE
5. ASSERT TS
FOR ONE CLK CYCLE
1. NEGATE TS
2. DRIVE ATM TO INDICATE APPROPRIATE ACCESS TYPE
3. DRIVE DATA ON APPROPRIATE BYTE LANES BASED ON
SIZ[1:0], A[1:0] AND PORT SIZE
*TO INSERT WAIT STATES, ATA IS DRIVEN NEGATED.
1. DECODE ADDRESS AND SELECT THE APPROPRIATE
SLAVE DEVICE.*
2. ASSERT ATA
3. CAPTURE THE DATA FROM THE APPROPRIATE BYTE
LANES BASED ON SIZ[1:0], A[1:0] AND PORT SIZE
1. DECODE ADDRESS AND SELECT THE APPROPRIATE
SLAVE DEVICE.*
2. ASSERT ATA
3. CAPTURE THE DATA FROM THE APPROPRIATE BYTE
LANES BASED ON SIZ[1:0], A[1:0] AND PORT SIZE
1. DECODE ADDRESS AND SELECT THE APPROPRIATE
SLAVE DEVICE.*
2. ASSERT ATA
3. CAPTURE THE DATA FROM THE APPROPRIATE BYTE
LANES BASED ON SIZ[1:0], A[1:0] AND PORT SIZE
1. DECODE ADDRESS AND SELECT THE APPROPRIATE
SLAVE DEVICE.*
2. ASSERT ATA
3. CAPTURE THE DATA FROM THE APPROPRIATE BYTE
LANES BASED ON SIZ[1:0], A[1:0] AND PORT SIZE
1. INCREMENT APPROPRIATE ADDRESS BITS BASED ON
SIZ[1:0], A[3:0] AND PORT SIZE
2. DRIVE DATA ON APPROPRIATE BYTE LANES BASED ON
SIZ[1:0], A[1:0] AND PORT SIZE
1. INCREMENT APPROPRIATE ADDRESS BITS BASED ON
SIZ[1:0], A[3:0] AND PORT SIZE
2. DRIVE DATA ON APPROPRIATE BYTE LANES BASED ON
SIZ[1:0], A[1:0] AND PORT SIZE
1. RECOGNIZE THE TRANSFER IS DONE
2. THREE-STATE D[31:0]
1. INCREMENT APPROPRIATE ADDRESS BITS BASED ON
SIZ[1:0], A[3:0] AND PORT SIZE
2. DRIVE DATA ON APPROPRIATE BYTE LANES BASED ON
SIZ[1:0], A[1:0] AND PORT SIZE
Fr
eescale S
emiconduct
or
, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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