DM505 datasheet(128/290 Pages) TI1

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DM505

SPRS976D – NOVEMBER 2016 – REVISED JULY 2017

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Specifications

(1) H = Access Time * (TimeParaGranularity + 1)

(2) P = PageBurstAccessTime * (TimeParaGranularity + 1)

Table 5-38. GPMC/NOR Flash Interface Switching Characteristics - Asynchronous Mode

NO.

PARAMETER

DESCRIPTION

MIN

MAX

UNIT

tr(DO)

Rising time, gpmc_ad[15:0] output data

0.447

4.067

tf(DO)

Fallling time, gpmc_ad[15:0] output data

0.43

4.463

FA0

tw(nBEV)

Pulse duration, gpmc_ben[1:0] valid time

FA1

tw(nCSV)

Pulse duration, gpmc_cs[7:0] low

FA3

td(nCSV-nADVIV)

Delay time, gpmc_cs[7:0] valid to gpmc_advn_ale invalid

B - 0.2

B + 2.0

FA4

td(nCSV-nOEIV)

Delay time, gpmc_cs[7:0] valid to gpmc_oen_ren invalid (Single read)

C - 0.2

C + 2.0

FA9

td(AV-nCSV)

Delay time, address bus valid to gpmc_cs[7:0] valid

J - 0.2

J + 2.0

FA10

td(nBEV-nCSV)

Delay time, gpmc_ben[1:0] valid to gpmc_cs[7:0] valid

J - 0.2

J + 2.0

FA12

td(nCSV-nADVV)

Delay time, gpmc_cs[7:0] valid to gpmc_advn_ale valid

K - 0.2

K + 2.0

FA13

td(nCSV-nOEV)

Delay time, gpmc_cs[7:0] valid to gpmc_oen_ren valid

L - 0.2

L + 2.0

FA16

tw(AIV)

Pulse duration, address invalid between 2 successive R/W accesses

FA18

td(nCSV-nOEIV)

Delay time, gpmc_cs[7:0] valid to gpmc_oen_ren invalid (Burst read)

I - 0.2

I + 2.0

FA20

tw(AV)

Pulse duration, address valid : 2nd, 3rd and 4th accesses

FA25

td(nCSV-nWEV)

Delay time, gpmc_cs[7:0] valid to gpmc_wen valid

E - 2

E + 2.0

FA27

td(nCSV-nWEIV)

Delay time, gpmc_cs[7:0] valid to gpmc_wen invalid

F - 0.2

F + 2.0

FA28

td(nWEV-DV)

Delay time, gpmc_ wen valid to data bus valid

FA29

td(DV-nCSV)

Delay time, data bus valid to gpmc_cs[7:0] valid

J - 0.2

J + 2.0

FA37

td(nOEV-AIV)

Delay time, gpmc_oen_ren valid to gpmc_ad[15:0] multiplexed

address bus phase end

(1) For single read: N = RdCycleTime * (TimeParaGranularity + 1) * GPMC_FCLK

For single write: N = WrCycleTime * (TimeParaGranularity + 1) * GPMC_FCLK

For burst read: N = (RdCycleTime + (n – 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK

For burst write: N = (WrCycleTime + (n – 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK

(2) For single read: A = (CSRdOffTime - CSOnTime) * (TimeParaGranularity + 1) * GPMC_FCLK

For single write: A = (CSWrOffTime – CSOnTime) * (TimeParaGranularity + 1) * GPMC_FCLK

For burst read: A = (CSRdOffTime - CSOnTime + (n - 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK period

For burst write: A = (CSWrOffTime - CSOnTime + (n - 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK period

with n the page burst access number.

(3) For reading: B = ((ADVRdOffTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (ADVExtraDelay – CSExtraDelay)) * GPMC_FCLK

For writing: B = ((ADVWrOffTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (ADVExtraDelay – CSExtraDelay)) * GPMC_FCLK

(4) C = ((OEOffTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (OEExtraDelay – CSExtraDelay)) * GPMC_FCLKFor single read: C

= RdCycleTime * (TimeParaGranularity + 1) * GPMC_FCLK

(5) J = (CSOnTime * (TimeParaGranularity + 1) + 0.5 * CSExtraDelay) * GPMC_FCLK

(6) K = ((ADVOnTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (ADVExtraDelay – CSExtraDelay)) * GPMC_FCLK

(7) L = ((OEOnTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (OEExtraDelay – CSExtraDelay)) * GPMC_FCLK

(8) G = Cycle2CycleDelay * GPMC_FCLK * (TimeParaGranularity + 1)

(9) I = ((OEOffTime + (n – 1) * PageBurstAccessTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (OEExtraDelay – CSExtraDelay)) *

GPMC_FCLK

(10) D = PageBurstAccessTime * (TimeParaGranularity + 1) * GPMC_FCLK

(11) E = ((WEOnTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (WEExtraDelay – CSExtraDelay)) * GPMC_FCLK

(12) F = ((WEOffTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (WEExtraDelay – CSExtraDelay)) * GPMC_FCLK

DM505 Datasheet(PDF) 128 Page - Texas Instruments

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