FCLK
Data capture on GPMC side: RdAccessTime = 9
nADV
AdvRdOffTime = 1
RdCycleTime = 11
nCS
nOE
Valid AddressA/D bus
CsReadOffTime = 10
OeOffTime = 10
OeOnTime = 3
Data Setup time
Data Hold time
tOEZ
Valid AddressDATA
Memory-side access time
GPMC
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Table 7-49. GPMC Timing Parameters for Asynchronous Read Access
Number of
Duration
Parameter Name on Clock Cycles
(ns)
GPMC side Formula (F = 104 MHz) GPMC Register Configurations
ClkActivationTime n/a (asynchronous mode)
AccessTime round max (tCE) 80 9 ACCESSTIME = 9h
PageBurstAccessTime n/a (single access)
RdCycleTime AccessTime + 1cycle + tOEZ 96, 615 11 RDCYCLETIME = Bh
CsOnTime tCAS 0 0 CSONTIME = 0
CsReadOffTime AccessTime + 1 cycle 89, 615 10 CSRDOFFTIME = Ah
AdvOnTime tAAVDS 3 1 ADVONTIME = 1
AdvRdOffTime tAAVDS + tAVDP 9 1 ADVRDOFFTIME = 1
OeOnTime ≥ AdvRdOffTime
OeOnTime - 3, for instance OEONTIME = 3h
(multiplexed mode)
OeOffTime AccessTime + 1cycle 89, 615 10 OEOFFTIME = Ah
Figure 7-49. Asynchronous Single Read Access (Timing Parameters in Clock Cycles)
360
Memory Subsystem SPRUH73H–October 2011–Revised April 2013
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