MCIMX35 Motorola Semiconductor Products, MCIMX35 Datasheet - Page 44

• Manufacturer Part Number: MCIMX35
• Manufacturer: Motorola Semiconductor Products

44
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SD11 and SD12 are determined by SDRAM controller register settings.
MCIMX35 (i.MX35) Multimedia Applications Processor for Automotive Products Advance Information, Rev. 0
SD1
SD2
SD13
SD14
ID
ADDR
ID
RAS
CAS
SDCLK
SDCLK
WE
CS
SD6
SDRAM clock high-level width
SDRAM clock low-level width
SDR SDRAM CLK parameters are measured from the 50% point—that is,
“high” is defined as 50% of signal value, and “low” is defined as 50% of
signal value.
The timing parameters are similar to the ones used in SDRAM data sheets.
Table 33
the ESDCTL at the negative edge of SDCLK, and the parameters are
measured at maximum memory frequency.
Data setup time
Data hold time
BA
Table 33. SDR SDRAM Write Timing Parameters (continued)
indicates SDRAM requirements. All output signals are driven by
SD7
Parameter
Table 34. SDRAM Refresh Timing Parameters
Figure 21. SDRAM Refresh Timing Diagram
Preliminary—Subject to Change Without Notice
SD11
Parameter
NOTE
SD10
Symbol
tCH
tCL
SD1
SD3
Symbol
tDH
tDS
SD2
Min.
SD10
3.4
3.4
Min.
2.0
1.3
ROW/BA
Freescale Semiconductor
Max.
4.1
4.1
Max.
—
—
Unit
Unit
ns
ns
ns
ns