SPC5125YVN400 FREESCALE [Freescale Semiconductor, Inc], SPC5125YVN400 Datasheet - Page 61

• Manufacturer Part Number: SPC5125YVN400
• Description: MPC5125 Microcontroller Data Sheet
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

4.3.7
The NAND flash controller (NFC) implements the interface to standard NAND flash memory devices. This section describes
the timing parameters of the NFC.
TH is the flash clock high time, TL is flash clock low time, where
Refer to the MPC5125 Reference Manual (MPC5125RM) for more information about NFC_RATIO_H and NFC_RATIO_L.
Freescale Semiconductor
Parameter
Timing
t
t
t
t
t
t
t
t
t
t
t
t
CLH
t
t
t
REH
CLS
ALS
ALH
WC
WH
t
WP
CS
CH
DS
DH
RR
RP
RC
IS
NFC
NFC_CLE setup time
NFC_CLE hold time
NFC_CE[3:0] setup time
NFC_CE[3:0] hold time
NFC_WP pulse width
NFC_ALE setup time
NFC_ALE hold time
Data setup time
Data hold time
Write cycle time
NFC_WE hold time
Ready to NFC_RE low
NFC_RE pulse width
READ cycle time
NFC_RE high hold time
Data input setup time
Description
Table 26. NFC Target Timing Characteristics
MPC5125 Microcontroller Data Sheet, Rev. 3
TH = 5 × NFC_RATIO_H / 8 (ns)
TL = 5 × NFC_RATIO_L / 8 (ns)
4TH + 3TL + 90
2TH + TL – 1
2TH + TL – 1
TH + TL – 1
TH + TL – 1
TL + TH – 1
Min. value
2TH + TL
TH + TL
TH + TL
TH – 1
TH – 1
TH – 1
TL – 1
TL + 1
TL – 1
6
Electrical and Thermal Characteristics
Max. value
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SpecID
A8.10
A8.11
A8.12
A8.13
A8.14
A8.15
A8.16
Eqn. 6
Eqn. 7
A8.1
A8.2
A8.3
A8.4
A8.5
A8.6
A8.7
A8.8
A8.9
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