PCIMX536AVV8C datasheet(52/178 Pages) FREESCALE

52 / 178 page

i.MX53xA Automotive and Infotainment Applications Processors, Rev. 2

Freescale Semiconductor

Electrical Characteristics

4.6.6

External Interface Module (EIM)

The following subsections provide information on the EIM.

4.6.6.1

EIM Signal Cross Reference

Table 36 is a guide intended to help the user identify signals in the External Interface Module Chapter of

the Reference Manual which are identical to those mentioned in this data sheet.

4.6.6.2

EIM Interface Pads Allocation

EIM supports16-bit and 8-bit devices operating in address/data separate or multiplexed modes. In some

of the modes the EIM and the NAND FLASH have shared data bus. Table 37 provides EIM interface

pads allocation in different modes.

4 NF17 is defined only in asymmetric operation mode.

NF17 max value is equivalent to max tRHZ value that can be used with NFC.

Taclk is “emi_slow_clk” of the system.

NF18 is defined only in Symmetric operation mode.

tDHR (MIN) is calculated by the following formula:

Tdl2 – (tREpd + tDpd)

where tREpd is RE propogation delay in the chip including I/O pad delay, and tDpd is Data propogation delay from I/O pad to

EXTMC including I/O pad delay.

NF18 max value is equivalent to max tRHZ value that can be used with NFC.

Taclk is “emi_slow_clk” of the system.

Table 36. EIM Signal Cross Reference

Reference Manual

EIM Chapter Nomenclature

Data Sheet Nomenclature,

Reference Manual External Signals and Pin Multiplexing Chapter,

and IOMUXC Controller Chapter Nomenclature

BCLK

EIM_BCLK

CSx

EIM_CSx

WE_B

EIM_RW

OE_B

EIM_OE

BEy_B

EIM_EBx

ADV

EIM_LBA

ADDR

EIM_A[25:16], EIM_DA[15:0]

ADDR/M_DATA

EIM_DAx (Addr/Data muxed mode)

DATA

EIM_NFC_D (Data bus shared with NAND Flash)

EIM_Dx (dedicated data bus)

WAIT_B

EIM_WAIT

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