MCIMX31L FREESCALE [Freescale Semiconductor, Inc], MCIMX31L Datasheet - Page 97

• Manufacturer Part Number: MCIMX31L
• Description: Multimedia Applications Processors
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Freescale Semiconductor
1
SD11 and SD12 are determined by SDRAM controller register settings.
SD1
SD2
SD13
SD14
ID
ADDR
ID
DQM
RAS
CAS
SDCLK
SDCLK
WE
DQ
CS
SDRAM clock high-level width
SDRAM clock low-level width
SDR SDRAM CLK parameters are being measured from the 50%
point—that is, high is defined as 50% of signal value and low is defined as
50% of signal value.
Data setup time
Data hold time
SD6
BA
Table 35. SDR SDRAM Write Timing Parameters (continued)
SD7
Parameter
Table 36. SDRAM Refresh Timing Parameters
Figure 38. SDRAM Refresh Timing Diagram
SD11
i.MX31/i.MX31L Advance Information, Rev. 1.4
Parameter
Preliminary
NOTE
SD10
Symbol
tCH
tCL
SD1
SD3
Symbol
tDH
tDS
SD2
Min
SD10
3.4
3.4
Min
2.0
1.3
ROW/BA
Electrical Characteristics
Max
4.1
4.1
Max
–
–
Unit
Unit
ns
ns
ns
ns
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