MCIMX257CJM4A Freescale, MCIMX257CJM4A Datasheet - Page 78

• Manufacturer Part Number: MCIMX257CJM4A
• Manufacturer: Freescale

Specifications of MCIMX257CJM4A

• Lead Free Status / RoHS Status: Compliant

78
WE32A(
Ref No.
WE35A
(muxed
muxed
WE31
WE32
WE33
WE34
WE35
WE36
WE37
WE38
WE39
WE40
A/D)
A/D
ADDR
CS [x]
EB[y]
DATA
LBA
DATA
RW
OE
CS[x] Valid to EB[y] Valid (Read
Address Invalid to CS[x] invalid
CS[x] valid to Address Invalid
EB[y] Invalid to CS[x] Invalid
CS[x] valid to Address Valid
LBA Invalid to CS[x] Invalid
WE Invalid to CS[x] Invalid
OE Invalid to CS[x] Invalid
CS[x] Valid to LBA Valid
CS[x] Valid to OE Valid
CS[x] Valid to WE Valid
CS[x] Valid to OE Valid
Table 55. WEIM Asynchronous Timing Parameters Relative to Chip Select Table
(Read access)
Last Valid Address
Parameter
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 6
access)
WE39
WE35
WE37
WE31
WE7 – WE13 + (RBEN – CSN)
WE12 – WE6 + (RBEA – CSA)
WE4 – WE7 + (LBN + LBA + 1
WE10 – WE6 + (OEA + RLBN
Figure 49. DTACK Read Access
WE7 – WE11 + (OEN – CSN)
WE10 – WE6 + (OEA – CSA)
WE14 – WE6 + (LBA – CSA)
WE7 – WE9 + (WEN – CSN)
WE8 – WE6 + (WEA – CSA)
+ RLBA + ADH + 1 – CSA)
Synchronous Measured
WE7 – WE15 – CSN
WE4 – WE6 – CSA
WE7 – WE5 – CSN
Determination By
WE47
Parameters
– CSA
WE43
Address V1
2
)
1
2
3
V1
–3 + (LBN + LBA +
RLBN + RLBA +
ADH + 1 – CSA)
WE36
WE38
–3 + (OEA +
WE32
WE40
1 – CSA)
Min
—
—
—
—
—
—
—
—
—
—
WE48
WE44
supported by SoC)
3 + (OEA + RLBN +
3 + (RBEA
3 – (RBEN
RLBA + ADH + 1 –
3 + (WEA – CSA)
3 – (OEN – CSN)
3 + (OEA – CSA)
3 + (LBA – CSA)
3 – (WEN_CSN)
Next Address
(If 133 MHz is
Freescale Semiconductor
3 – CSN
3 – CSN
3 – CSA
CSA)
Max
—
4
5
– CSN)
– CSA)
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns