FCLK
WrCycleTime = 6
nADV
nCS
nWE
A/D bus
CsWriteOffTime = 6
WeOffTime = 5
DATA DATA
At least > 25 ns (tWP)
WeOnTime = 2 (at least 1)
AdvWrOffTime = 1
Access Completion / Data Hold time
At least > 20 ns (tWPH)
ADDRESS
ADDRESS
GPMC
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Table 7-51. GPMC Timing Parameters for Asynchronous Single Write
Number of
Duration
Parameter Name on Clock Cycles
(ns)
GPMC side Formula (F = 104 MHz) GPMC Register Configurations
ClkActivationTime n/a (asynchronous mode)
Applicable only to
AccessTime WAITMONITORING (the value is
the same as for read access)
PageBurstAccessTime n/a (single access)
WrCycleTime WeOffTime + AccessCompletion 57, 615 6 WRCYCLETIME = 6h
CsOnTime tCAS 0 0 CSONTIME = 0
CsWrOffTime WeOffTime + 1 57, 615 6 CSWROFFTIME = 6h
AdvOnTime tAVSC 3 1 ADVONTIME = 1
AdvWrOffTime tAVSC + tAVDP 9 1 ADVWROFFTIME = 1
WeOnTime tCS 3 1 WEONTIME = 1
WeOffTime tCS + tWP + tWPH 48 5 WEOFFTIME = 5h
Figure 7-50. Asynchronous Single Write Access (Timing Parameters in Clock Cycles)
362
Memory Subsystem SPRUH73H–October 2011–Revised April 2013
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