MPC8544COMEDEV Freescale Semiconductor, MPC8544COMEDEV Datasheet - Page 368
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MPC8544COMEDEV
Manufacturer Part Number
MPC8544COMEDEV
Description
KIT DEV EXPRESS MPC8544COM
Manufacturer
Freescale Semiconductor
Type
MPUr
Datasheets
1.MPC8544VTALF.pdf
(117 pages)
2.MPC8544VTALF.pdf
(2 pages)
3.MPC8544VTALF.pdf
(1340 pages)
Specifications of MPC8544COMEDEV
Contents
Board
For Use With/related Products
MPC8544
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 368 of 1340
- Download datasheet (12Mb)
DDR Memory Controller
Section 9.5.12, “Error Management,”
9-44
1. All signals are connected in common (in parallel) except for MCS[0:3], MCK[0:5], MDM[0:8], and the data bus signals.
2. Each of the MCS[0:3] signals correspond with a separate physical bank of memory.
3. Buffering may be needed if large memory arrays are used.
4. MCK[0:5] may be apportioned among all memory devices. Complementary bus is not shown.
DDR
Controller
MDQS[0:8]
MDQ[0:63]
MECC[0:7]
MDM[0:8]
MCK[0:5]
MCK[0:5]
MBA[2:0]
MCS[0:3]
MA[15:0]
MRAS
MCAS
MCKE
MWE
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
Figure 9-36. Example 256-Mbyte DDR SDRAM Configuration With ECC
MCS0
0
1
2
3
4
5
6
7
8
A[11:0]
BA[1:0]
RAS
CAS
WE
CKE
CK
CS
DM
A[11:0]
BA[1:0]
RAS
CAS
WE
CKE
CK
CS
DM
8M × 8 SDRAM
8M × 8 SDRAM
A[0-11]
BA[0-1]
RAS
CAS
CKE
CLK
CS
DM
A(11-0)
BA(1-0)
RAS
CAS
CKE
CLK
CS
DM
2Mx8 SDRAM
A(11-0)
BA(1-0)
RAS
CAS
CKE
CLK
CS
DM
2Mx8 SDRAM
A[0-11]
BA[0-1]
RAS
CAS
CKE
CLK
CS
DM
2 Mx8 SDRAM
A[0-11]
BA[0-1]
RAS
CAS
CKE
CLK
CS
DM
2Mx8 SDRAM
A[0-11]
BA[0-1]
RAS
CAS
CKE
CLK
CS
DM
2Mx8 SDRAM
A[0-11]
BA[0-1]
RAS
CAS
CKE
CLK
CS
DM
2Mx8 SDRAM
2 Mx8 SDRAM
DQ[0-7]
DQ[7:0]
DQ[7:0]
Bank 0
8M × 72 (64 Mbytes)
MDQS
DQ(7-0)
MDQS
DQ(7-0)
DQ[0-7]
DQ[0-7]
To all SDRAM
Devices in
Common
DQ[0-7]
explains how the DDR memory controller handles errors.
DQ[0-7]
Memory Data Bus and Strobes
MDQS[8]
MDQS[0]
MDQ[0:7]
MDQ[8:15]
MDQ[16:23]
MDQ[24:31]
MDQ[32:39]
MDQ[40:47]
MDQ[48:55]
MDQ[56:63]
ECC[0:7]
MDQS[7]
MCS1
0
1
2
3
4
5
6
7
8
A[11:0]
BA[1:0]
RAS
CAS
WE
CKE
CK
CS
DM
A[11:0]
BA[1:0]
RAS
CAS
CKE
CK
CS
DM
WE
8M × 8 SDRAM
8M × 8 SDRAM
A[0-11]
BA[0-1]
RAS
CAS
CKE
CLK
CS
DM
A(11-0)
BA(1-0)
RAS
CAS
CKE
CLK
CS
DM
2Mx8 SDRAM
A(11-0)
BA(1-0)
RAS
CAS
CKE
CLK
CS
DM
2 Mx8 SDRAM
A[0-11]
BA[0-1]
RAS
CAS
CKE
CLK
CS
DM
2Mx8 SDRAM
A[0-11]
BA[0-1]
RAS
CAS
CKE
CLK
CS
DM
2Mx8 SDRAM
A[0-11]
BA[0-1]
RAS
CAS
CKE
CLK
CS
DM
2Mx8 SDRAM
Bank 1
8M × 72 (64 Mbytes)
A[0-11]
BA[0-1]
RAS
CAS
CKE
CLK
CS
DM
2 Mx8 SDRAM
2Mx8 SDRAM
DQ[0-7]
DQ[7:0]
DQ[7:0]
DQ(7-0)
MDQS
MDQS
DQ(7-0)
DQ[0-7]
DQ[0-7]
DQ[0-7]
DQ[0-7]
Freescale Semiconductor
MDQS[8]
MDQS[0]
MDQ[0:7]
MDQ[8:15]
MDQ[16:23]
MDQ[24:31]
MDQ[32:39]
MDQ[40:47]
MDQ[48:55]
MDQ[56:31]
ECC[0:7]
MDQS[7]
Banks 2–3
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