mcf5407 Freescale Semiconductor, Inc, mcf5407 Datasheet - Page 328
mcf5407
Manufacturer Part Number
mcf5407
Description
Mcf5407 Coldfire Integrated Microprocessor User
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MCF5407.pdf
(546 pages)
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DMA Controller Module Functional Description
Figure 12-13 shows a single-address DMA transfer in which the peripheral is reading from
memory. Note that TM2 is high, indicating a single-address transfer. Note that DREQ is
negated in clock 4, before the assertion of TS in clock 6.
12-16
TM0/DACK0
Figure 12-12. Dual-Address, Peripheral-to-SDRAM, Lower-Priority DMA Transfer
RAS[1:0]
CAS[3:0]
DRAMW
SIZ[1:0]
DREQ0
D[31:0]
A[31:0]
TT[1:0]
CLKIN
SRAS
SCAS
TM2
R/W
CSx
TIP
AS
TS
TA
0
CPU
MCF5407 User’s Manual
DMA Read
1
0
CPU
1
DMA Write
0
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CPU
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