Datasheet

PRODUCTPREVIEW
GPMC_FCLK
gpmc_clk
gpmc_csn[x]
gpmc_a[10:1]
gpmc_be0n_cle
gpmc_be1n
gpmc_advn_ale
gpmc_oen
gpmc_ad[15:0]
gpmc_wait[x]
Add0
Add1 Add2
Add3
Add4
D0 D1 D2 D3
D3
FA1
FA0
FA18
FA13
FA12
FA0
FA9
FA10
FA10
FA21
FA20
FA20
FA20
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SPRS717E –OCTOBER 2011–REVISED JANUARY 2013 www.ti.com
A. 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.
B. 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.
C. 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.
D. GPMC_FCLK is an internal clock (GPMC functional clock) not provided externally.
Figure 5-23. GPMC and NOR Flash—Asynchronous Read—Page Mode 4x16-bit
136 Peripheral Information and Timings Copyright © 2011–2013, Texas Instruments Incorporated
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