I.MX27 Datasheet, PDF (69/148 Pages) Freescale Semiconductor, Inc – Multimedia Applications Processor

Electrical Characteristics
NFCLE
NF1
NF3
NFCE
NFWE
NF10
NF4
NF5
NF11
NF6
NFALE
NFIO[15:0]
NF8
NF9
Data to Flash
Figure 33. Write Data Latch Timing Diagram
NFCLE
NFCE
NFRE
NFRB
NF3
NF14
NF13
NF15
NF16
NF17
NFIO[15:0]
NF12
Data from Flash
Figure 34. Read Data Latch Timing Diagram
Table 35. NFC Target Timing Parameters
ID
Parameter
NF1 NFCLE Setup Time
NF2 NFCLE Hold Time
NF3 NFCE Setup Time
NF4 NFCE Hold Time
NF5 NF_WP Pulse Width
Relationship to NFC NFC clock 22.17 MHz NFC clock 33.25 MHz
Symbol ^{clock period (T)}
T = 45 ns
T = 30 ns
Unit
Min
Max
Min
Max
Min
Max
tCLS
T
—
45
—
30
—
ns
tCLH
T
tCS
T
—
45
—
30
—
45
—
30
—
ns
—
ns
tCH
T
tWP
T
—
45
—
30
—
45
—
30
—
ns
—
ns
i.MX27 and i.MX27L Data Sheet, Rev. 1.5
Freescale Semiconductor
69