AM3703CUS datasheet(174/280 Pages) TI

174 / 280 page

GPMC_FCLK

gpmc_clk

gpmc_ncsx

gpmc_a[10:1]

gpmc_nbe0_cle

gpmc_nbe1

gpmc_nadv_ale

gpmc_noe

gpmc_d[15:0]

gpmc_waitx

gpmc_io_dir

Add0

Add1

Add2

Add3

Add4

OUT

FA1

FA0

FA18

FA13

FA12

FA0

FA9

FA10

FA21

FA14

FA15

SWPS038-021

FA20

AM3715, AM3703

SPRS616F

– JUNE 2010 – REVISED AUGUST 2011

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(1)

In gpmc_ncsx, x is equal to 0, 1, 2, 3, 4, 5, 6, or 7. In gpmc_waitx, x is equal to 0, 1, 2, or 3.

(2)

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 will be internally sampled

by active functional clock edge. FA21 calculation must be stored inside AccessTime register bits field.

(3)

FA20 parameter 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 will be internally sampled by active

functional clock edge after FA20 functional clock cycles. FA20 is also the duration of address phases for successive input page data

(excluding first input page data). FA20 value must be stored in PageBurstAccessTime register bits field.

(4)

GPMC_FCLK is an internal clock (GPMC functional clock) not provided externally.

Figure 6-9. GPMC / NOR Flash

—Asynchronous Read—Page Mode 4x16-bit

174

Timing Requirements and Switching Characteristics

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