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USB97C100QFP Datenblatt(PDF) 59 Page - SMSC Corporation

Teilenummer USB97C100QFP
Bauteilbeschribung  Multi-Endpoint USB Peripheral Controller
PDF  64 Pages
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Hersteller  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
Logo SMSC - SMSC Corporation

USB97C100QFP Datenblatt(HTML) 59 Page - SMSC Corporation

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SMSC DS – USB97C100
Page 59
Rev. 01/03/2001
FIGURE 14 - DMA TIMING (BURST TRANSFER MODE)
Table 92 - DMA Timing (Burst Transfer Mode) Parameters
NAME
DESCRIPTION
MIN
TYP
MAX
UNITS
t1
SA[19:0] Address Setup time to
nMEMRD/nIOR or nMEMWR/nIOW
Asserted
65
ns
t2
nMEMRD/nIOR or nMEMWR/nIOW
Pulsewidth
100
ns
t3
nMEMRD/nIOR or nMEMWR/nIOW
deasserted to SA[19:0] Address valid Hold
time
30
ns
t4
nDACK Width
150
ns
t7
Data Setup Time to nIOR High
50
ns
t8
Data Set Up Time to nIOW High
40
ns
t9
Data to Float Delay from nIOR High
25
50
ns
t10
Data Hold Time from nIOW High
25
ns
t11
nDACK Set Up to nIOW/nIOR Low
22.5
ns
t12
nDACK Hold after nIOW/nIOR High
22.5
ns
t13
TC Pulse Width
60
ns
t14
AEN Set Up to nIOR/nIOW
40
ns
t15
AEN Hold from nDACK
10
ns
t16
nMEMRD/nIOR or nMEMWR/nIOW
asserted to Data valid
0ns
t15
t4
t14
t8
t13
AEN
nDACK
nMEMRD /nIOR
or
nMEMWR/ nIOW
DATA
SD[7:0]
TC
SA[19:0]
t1
t2
t3
t7
DATA VALID
t9
t10
t11
t12
t16
DATA VALID



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