AM652X datasheet(174/299 Pages) TI1

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GPMC_CLK

GPMC_CSn[x]

GPMC_A[27:17]

GPMC_BE1n

BPMC_BE0n_CLE

GPMC_ADVn_ALE

GPMC_WEn

GPMC_WAIT[x]

Address (LSB)

D 0

D 1

D 2

D 3

F15

F17

F18

F20

F14

F22

F21

Address (MSB)

GPMC_AD[15:0]

F14

GPMC_05

174

AM6548, AM6528, AM6546

AM6526, AM6527

SPRSP08E – NOVEMBER 2017 – REVISED OCTOBER 2018

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Specifications

In GPMC_CSn[x], x is equal to 0, 1, 2 or 3.

In GPMC_WAIT[x], x is equal to 0 or 1.

Figure 5-47. GPMC and Multiplexed NOR Flash—Synchronous Burst Write

5.11.5.10.2 GPMC and NOR Flash—Asynchronous Mode

Table 5-50 and Table 5-51 assume testing over the recommended operating conditions and electrical

characteristic conditions below (see Figure 5-48 through Figure 5-53).

Table 5-50. GPMC and NOR Flash Timing Requirements—Asynchronous Mode

NO.

PARAMETER

DESCRIPTION

MODE

MIN

MAX

UNIT

FA5(1)

tacc(d)

Data access time

div_by_1_mode;

GPMC_FCLK_MUX_133;

TIMEPARAGRANULARITY_X1

H (5)

FA20(2) tacc1-pgmode(d)

Page mode successive data access time

div_by_1_mode;

GPMC_FCLK_MUX_133;

TIMEPARAGRANULARITY_X1

P (4)

FA21(1) tacc2-pgmode(d)

Page mode first data access time

div_by_1_mode;

GPMC_FCLK_MUX_133;

TIMEPARAGRANULARITY_X1

H (5)

(1) The FA5 parameter illustrates the amount of time required to internally sample input data. It is expressed in number of GPMC functional

clock cycles. From start of read cycle and after FA5 functional clock cycles, input data is internally sampled by active functional clock

edge. FA5 value must be stored inside the AccessTime register bit field.

(2) The FA20 prameter illustrates amount of time required to internally sample successive input page data. It is expressed in number of

GPMC functional clock cycles. After each access to input page data, next input page data is internally sampled by active functional clock

edge after FA20 functional clock cycles. The FA20 value must be stored in the PageBurstAccessTime register bit field.

(3) The FA21 parameter illustrates amount of time required to internally sample first input page data. It is expressed in number of GPMC

functional clock cycles. From start of read cycle and after FA21 functional clock cycles, first input page data is internally sampled by

active functional clock edge. FA21 value must be stored inside the AccessTime register bit field.

(4) P = PageBurstAccessTime × (TimeParaGranularity + 1) × GPMC_FCLK(6)

(5) H = AccessTime × (TimeParaGranularity + 1) × GPMC_FCLK(6)

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