
SDRAM Controller (SDRAMC)
18-12
Freescale Semiconductor
18.3.3
SDRAM DDR Component Connections
shows a block diagram using 16-bit wide DDR SDRAM (such as Micron MT46V8M16) and
flash (such as Spansion AM29DBB160G).
Figure 18-3. Example 2.5V, 16-bit DDR SDRAM System
18.3.4
DDR SDRAM Layout Considerations
Due to the critical timing for DDR SDRAM, a number of considerations should be taken into account
during PCB layout:
•
Minimize overall trace lengths.
SDRAM Controller
2.5V DDR SDRAM
A[13:11,9:0]
A10/AP
BA[1:0]
D[15:0]
SD_A10
SD_A[23:0]
BE/BWE/DQM[3:2]
SD_D[31:16]
SD_CKE
SD_CLK
SD_CS0
CS
SD_RAS
SDWE
CLK
CKE
RAS
SD_CAS
CAS
WE
SD_DQS[3:2]
DQM[3:2]
A[15:14]
A[13:11,9:0]
2.5V Flash
A[22:0]
D[15:0]
WE
OE
CE
FB_CS0
SDRAM Co
ntrol
Signa
ls
Fle
x
Bu
s Co
ntro
l
Signa
ls
SD_CLK
CLK
DQS[1:0]
A[23:1]
VREF
1.25V
GND
DRAMSEL
D[15:0]
R/W
OE
MCF5329 Reference Manual, Rev 3
Summary of Contents for MCF5329
Page 106: ...ColdFire Core 3 32 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 148: ...Cache 5 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 154: ...Static RAM SRAM 6 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 184: ...Power Management 8 18 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 204: ...Reset Controller Module 10 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 220: ...System Control Module SCM 11 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 228: ...Crossbar Switch XBS 12 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 268: ...General Purpose I O Module 13 40 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 392: ...SDRAM Controller SDRAMC 18 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 436: ...Fast Ethernet Controller FEC 19 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 594: ...FlexCAN 23 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 678: ...Pulse Width Modulation PWM Module 26 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 684: ...Watchdog Timer Module 27 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 704: ...DMA Timers DTIM0 DTIM3 29 12 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 754: ...UART Modules 31 34 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 770: ...I2 C Interface 32 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 866: ...Debug Module 36 50 Freescale Semiconductor MCF5329 Reference Manual Rev 3...