mcf5307cft90b Freescale Semiconductor, Inc, mcf5307cft90b Datasheet - Page 396

• Manufacturer Part Number: mcf5307cft90b
• Description: Mcf5307 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

SIZ[1:0], A[31:0]
Data Transfer Operation
Note the following characteristics of a basic read:
States are described in Table 18-4.
18.4.4 Write Cycle
During a write cycle, the MCF5307 sends data to memory or to a peripheral device. The
write cycle flowchart is shown in Figure 18-7.
TT[1:0], TM[2:0]
18-8
• In S3, data is made available by the external device on the falling edge of BCLKO
• In S4, the external device can stop driving data after the rising edge of BCLKO.
• For a read cycle, the external device stops driving data between S4 and S5.
BEx, OE
AS, CSx
BCLKO
D[31:0]
and is sampled on the rising edge of BCLKO with TA asserted.
However, data could be driven up to S5.
R/W
TIP
TS
TA
Freescale Semiconductor, Inc.
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Figure 18-6. Basic Read Bus Cycle
S0
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MCF5307 User’s Manual
S1
S2
S3
Read
S4
S5