MCIMX31L FREESCALE [Freescale Semiconductor, Inc], MCIMX31L Datasheet - Page 91

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

Figure
basic WEIM accesses to external memory devices with the timing parameters mentioned in
Table 33
Freescale Semiconductor
30,
ADDR
for specific control parameter settings.
BCLK
CS[x]
BCLK
DATA
EB[y]
ADDR
LBA
RW
Figure
CS[x]
OE
EB[y]
DATA
RW
LBA
OE
Figure 30. Asynchronous Memory Timing Diagram for Read Access—WSC=1
Test conditions: pad voltage, 1.75 V-1.95 V; pad capacitance, 25 pF.
Recommended drive strength for all controls, address, and BCLK is Max drive.
31,
Figure 31. Asynchronous Memory Timing Diagram for Write Access—
Last Valid Address
Last Valid Address
Figure
32,
i.MX31/i.MX31L Advance Information, Rev. 1.4
Figure
WE11
WE11
WE7
WE9
WE1
WE3
WE3
WE5
WE1
WSC=1, EBWA=1, EBWN=1, LBN=1
33,
WE13
WE9
Figure
Preliminary
NOTE
34, and
WE12
WE10
V1
Figure 35
V1
WE15
V1
V1
WE2
WE2
WE6
WE4
depict some examples of
Next Address
WE12
WE10
WE16
WE4
WE8
Next Address
Electrical Characteristics
WE14
91