LPC3240 datasheet(62/80 Pages) NXP

Part #	LPC3240

Description	16/32-bit ARM microcontrollers; hardware floating-point coprocessor, USB On-The-Go, and EMC memory interface

PDF	80 Pages

Scroll/Zoom	100%

Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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62 / 80 page

LPC3220_30_40_50

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Product data sheet

Rev. 2.1 — 24 June 2014

62 of 80

NXP Semiconductors

LPC3220/30/40/50

16/32-bit ARM microcontrollers

Fig 10. DDR control timing parameters

EMC_CLK

EMC control

and address

signals

002aae436

tCK

tCH

tCL

td(AV); td(V)ctrl

th(A); th(ctl)

valid

Fig 11. DDR write timing parameters

command

EMC_D[31:0],

EMC_DQM[3:0]

tDQSL

tDQSH

tDQSS

th(Q)

EMC_DQS[1:0]

EMC_CLK

002aae437

WRITE

tsu(Q)

tDSH

tDSS

(1) The delay of the EMC_DQS[1:0] signal is determined by the DQS_DELAY settings. See LPC32x0 User manual, External

Memory Controller Chapter, section DDR DQS delay calibration for details on configuring this value.

Fig 12. DDR read timing parameters

EMC_CLK

command

EMC_D[31:0]

tsu(D)

EMC_DQS[1:0]

002aae438

th(D)

READ

delayed EMC_DQS[1:0](1)

td(DQS)

LPC3240 Datasheet(PDF) 62 Page - NXP Semiconductors

LPC3240 Datasheet(HTML) 62 Page - NXP Semiconductors

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