FDC37N769_07 SMSC [SMSC Corporation], FDC37N769_07 Datasheet - Page 129
FDC37N769_07
Manufacturer Part Number
FDC37N769_07
Description
3.3V Super I/O Controller with Infrared Support for Portable Applications
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.FDC37N769_07.pdf
(137 pages)
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SMSC DS – FDC37N769
NOTES:
1. n WAIT is considered to have settled after it does not transition for a minimum of 50 ns.
2. When not executing a write cycle, EPP nWRITE is inactive high.
3. 85 is true only if t7 = 0.
t10
t11
t12
t13
t14
t15
t16
t17
t18
t19
t20
t21
t22
t25
t28
t1
t2
t3
t4
t5
t6
t7
t8
t9
FIGURE 17 - EPP 1.9 DATA OR ADDRESS READ CYCLE TIMING PARAMETERS
PDATA Hi-Z to Command Asserted
nIOR Asserted to PDATA Hi-Z
nWAIT Deasserted to Command
Deasserted
Command Deasserted to PDATA Hi-Z
Command Asserted to PDATA Valid
PDATA Hi-Z to nWAIT Deasserted
PDATA Valid to nWAIT Deasserted
nIOR Assertd to IOCHRDY Asserted
nWRITE Deasserted to nIOR Asserted
nWAIT Deasserted to IOCHRDY
Deasserted
IOCHRDY Deasserted to nIOR
Deasserted
nIOR Deasserted to SDATA Hi-Z (Hold
Time)
PDATA Valid to SDATA Valid
nWAIT Asserted to Command Asserted
Time Out
nWAIT Deasserted to PDATA Driven
nWAIT Deasserted to nWRITE Modified
SDATA Valid to IOCHRDY Deasserted
Ax Valid to nIOR Asserted
nIOR Deasserted to Ax Invalid
nWAIT Asserted to nWRITE Deasserted
nIOR Deasserted to nIOW or nIOR
Asserted
nWAIT Asserted to PDATA Hi-Z
WRITE Deasserted to Command
Parameter
DATASHEET
Page 129 of 137
min
60
60
10
60
60
40
10
40
60
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
max
180
160
195
190
190
185
180
30
50
24
40
75
12
85
10
units
ns
ns
ns
ns
ns
µs
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
1,2
1
2
1
1
3
1
Rev. 02-16-07
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