GPMC module
Nor Flash
Device
A[26:16]
CLK
RDY
nWP
nWE
nOE
nAVD
nCE
A/D[15:0]
A [27:17]
DEVICECLK
WP
WE
OE / RE
ADV /ALE
nCS [7:0]
A [16:1] / D [15:0]
gpmc_a[26:16]
gpmc_clk
gpmc_wait [1:0]
gpmc_nwp
gpmc_nwe
gpmc_noe_nre
gpmc_nadv_ale
gpmc_ncs[7:0]
gpmc_d[15:0]
WAIT [1:0]
11
16
GPMC
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Figure 7-47 shows the typical connection between the GPMC module and an attached NOR Flash
memory.
Figure 7-47. GPMC Connection to an External NOR Flash Memory
The following sections demonstrate how to calculate GPMC parameters for three access types:
• Synchronous burst read
• Asynchronous read
• Asynchronous single write
356
Memory Subsystem SPRUH73H–October 2011–Revised April 2013
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