IMX28AEC datasheet(41/72 Pages) FREESCALE

Part #	IMX28AEC

Description	Processors Data Sheet for Automotive Products High assurance boot

PDF	72 Pages

Scroll/Zoom	100%

Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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i.MX28 Applications Processors Data Sheet for Automotive Products, Rev. 1

Freescale Semiconductor

3.5.7

General-Purpose Media Interface (GPMI) Timing

The i.MX28 GPMI controller is a flexible interface NAND Flash controller with 8-bit data width, up to

50MB/s I/O speed and individual chip select.

It supports normal timing mode, using two Flash clock cycles for one access of RE and WE. AC timings

are provided as multiplications of the clock cycle and fixed delay. Figure 20, Figure 21, Figure 22 and

Figure 23 depict the relative timing between GPMI signals at the module level for different operations

under normal mode. Table 48 describes the timing parameters (NF1–NF17) that are shown in the figures.

Figure 20. Command Latch Cycle Timing Diagram

Figure 21. Address Latch Cycle Timing Diagram

CLE

CEn

ALE

IO[7:0]

Command

NF9

NF8

NF1

NF2

NF5

NF3

NF4

NF6

NF7

CLE

CEn

ALE

IO[7:0]

Address

NF9

NF8

NF1

NF5

NF3

NF4

NF6

NF11

NF10

NF7

IMX28AEC Datasheet(PDF) 41 Page - Freescale Semiconductor, Inc

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