AM6546 datasheet(179/284 Pages) TI

179 / 284 page

7.9.5.10.1.1 GPMC and NOR Flash Timing Requirements—Synchronous Mode

NO.

PARAMETER

DESCRIPTION

MODE(2)

MIN

MAX UNIT

F12

tsu(dV-clkH)

Setup time, input data GPMC_AD[15:0] valid

before output clock GPMC_CLK high

div_by_1_mode;

GPMC_FCLK_MUX_100;

TIMEPARAGRANULARITY_X1

2.17

not_div_by_1_mode;

GPMC_FCLK_MUX_100;

TIMEPARAGRANULARITY_X1

3.46

F13

th(clkH-dV)

Hold time, input data GPMC_AD[15:0] valid after

output clock GPMC_CLK high

div_by_1_mode;

GPMC_FCLK_MUX_100;

TIMEPARAGRANULARITY_X1

1.78

not_div_by_1_mode;

GPMC_FCLK_MUX_100;

TIMEPARAGRANULARITY_X1

1.78

F21

tsu(waitV-clkH)

Setup time, input wait GPMC_WAIT[x] valid before

output clock GPMC_CLK high (1)

div_by_1_mode;

GPMC_FCLK_MUX_100;

TIMEPARAGRANULARITY_X1

2.17

not_div_by_1_mode;

GPMC_FCLK_MUX_100;

TIMEPARAGRANULARITY_X1

3.46

F22

th(clkH-waitV)

Hold time, input wait GPMC_WAIT[x] valid after

output clock GPMC_CLK high (1)

div_by_1_mode;

GPMC_FCLK_MUX_100;

TIMEPARAGRANULARITY_X1

1.78

not_div_by_1_mode;

GPMC_FCLK_MUX_100;

TIMEPARAGRANULARITY_X1

1.78

(1)

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

(2)

For div_by_1_mode:

•

GPMC_CONFIG1_i Register: GPMCFCLKDIVIDER = 0h:

–

GPMC_CLK frequency = GPMC_FCLK frequency

For not_div_by_1_mode:

•

GPMC_CONFIG1_i Register: GPMCFCLKDIVIDER = 1h to 3h:

–

GPMC_CLK frequency = GPMC_FCLK frequency / (2 to 4)

For GPMC_FCLK_MUX_100:

•

gpmc_fclk_sel[1:0] = 01 = PER1_PLL_CLKOUT / 3 = 300 / 3 = 100MHz

For TIMEPARAGRANULARITY_X1:

•

GPMC_CONFIG1_i Register: TIMEPARAGRANULARITY = 0h = x1 latencies (affecting RD/WRCYCLETIME, RD/

WRACCESSTIME, PAGEBURSTACCESSTIME, CSONTIME, CSRD/WROFFTIME, ADVONTIME, ADVRD/WROFFTIME,

OEONTIME, OEOFFTIME, WEONTIME, WEOFFTIME, CYCLE2CYCLEDELAY, BUSTURNAROUND, TIMEOUTSTARTVALUE,

WRDATAONADMUXBUS)

7.9.5.10.1.2 GPMC and NOR Flash Switching Characteristics—Synchronous Mode

NO.(2) PARAMETER

DESCRIPTION

MODE(19)

MIN

MAX UNIT

tc(clk)

Period, output clock GPMC_CLK (18)

div_by_1_mode;

GPMC_FCLK_MUX_100;

TIMEPARAGRANULARITY_X1

tw(clkH)

Typical pulse duration, output clock GPMC_CLK

high

div_by_1_mode;

GPMC_FCLK_MUX_100;

TIMEPARAGRANULARITY_X1

-0.3+0.4

75*P (15)

tw(clkL)

Typical pulse duration, output clock GPMC_CLK

low

div_by_1_mode;

GPMC_FCLK_MUX_100;

TIMEPARAGRANULARITY_X1

-0.3+0.4

75*P (15)

www.ti.com

AM6548, AM6528, AM6546, AM6526

SPRSP52B – DECEMBER 2019 – REVISED JUNE 2021

Submit Document Feedback

179

Product Folder Links: AM6548 AM6528 AM6546 AM6526

AM6546 датащи(PDF) 179 Page - Texas Instruments

AM6546 датащи(HTML) 179 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL