MCIMX35 Motorola Semiconductor Products, MCIMX35 Datasheet - Page 47

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

Freescale Semiconductor
1
SD17
SD18
SD19
SD20
MCIMX35 (i.MX35) Multimedia Applications Processor for Automotive Products Advance Information, Rev. 0
Test condition: Measured using delay line 5 programmed as follows: ESDCDLY5[15:0] = 0x0703.
ID
DQM (output)
DQS (output)
DQ (output)
DQ and DQM setup time to DQS
DQ and DQM hold time to DQS
Write cycle DQS falling edge to SDCLK output delay time.
Write cycle DQS falling edge to SDCLK output hold time.
SDCLK
SDCLK
SDRAM CLK and DQS-related 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 36
the ESDCTL at the negative edge of SDCLK, and the parameters are
measured at maximum memory frequency.
Table 36. Mobile DDR SDRAM Write Cycle Timing Parameters
Figure 23. Mobile DDR SDRAM Write Cycle Timing Diagram
indicates SDRAM requirements. All output signals are driven by
SD17
SD17
Preliminary—Subject to Change Without Notice
Parameter
Data
DM
SD18
SD18
Data
DM
NOTE
Data
SD17
DM
SD17
Data
DM
SD18
SD18
Data
DM
Symbol
tDSS
tDSH
tDH
tDS
Data
DM
SD19
1
Min.
0.95
0.95
Data
DM
1.8
1.8
SD20
Max.
—
—
—
—
Data
DM
Unit
ns
ns
ns
ns
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