AM3359_16 Datasheet, PDF (148/253 Pages) Texas Instruments – Sitara Processors

AM3359, AM3358, AM3357, AM3356, AM3354, AM3352, AM3351
SPRS717J – OCTOBER 2011 – REVISED APRIL 2016
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GPMC_FCLK
gpmc_csn[x]
gpmc_be0n_cle
gpmc_advn_ale
gpmc_oen
gpmc_ad[15:0]
GNF12
GNF10
GNF15
GNF13
GNF14
DATA
gpmc_wait[x]
(1) GNF12 parameter illustrates 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 GNF12 functional clock cycles, input data will be internally sampled by active
functional clock edge. GNF12 value must be stored inside AccessTime register bits field.
(2) GPMC_FCLK is an internal clock (GPMC functional clock) not provided externally.
(3) In gpmc_csn[x], x is equal to 0, 1, 2, 3, 4, or 5. In gpmc_wait[x], x is equal to 0 or 1.
Figure 7-30. GPMC and NAND Flash—Data Read Cycle
GPMC_FCLK
gpmc_csn[x]
GNF1
GNF6
gpmc_be0n_cle
gpmc_advn_ale
gpmc_oen
GNF9
GNF0
gpmc_wen
GNF3
GNF4
gpmc_ad[15:0]
DATA
(1) In gpmc_csn[x], x is equal to 0, 1, 2, 3, 4, or 5.
Figure 7-31. GPMC and NAND Flash—Data Write Cycle
148 Peripheral Information and Timings
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