FDC37C669_07 SMSC [SMSC Corporation], FDC37C669_07 Datasheet - Page 156

• Manufacturer Part Number: FDC37C669_07
• Description: PC 98/99 Compliant Super I/O Floppy Disk Controller with Infrared Support
• Manufacturer: SMSC [SMSC Corporation]

nADD RS TB
nDATAS TB
1 . nWRITE is controll ed by setti ng the PDIR bit to "1 " i n th e control register before
IOCHRDY
S D<7:0>
P D<7:0>
nWRITE
nWAIT
t10
t11
t12
t13
t15
t19
t20
t21
t22
t23
t 2
t 3
t 4
t 5
t 8
performing an EPP R ead .
nIOR
AX
nIOR Deas sert ed to Command Deass erted
nWAIT Asserted to IOC HRDY D eass erted
Com mand Deasserted to PDATA Hi-Z
Command Asserted to PDATA Valid
nIO R As serted to IOCHRDY Asserted
nWA IT Deasserted to nIOCHRDY Deasserted
nIOC HRDY D easserted to nIO R D eass erted
nI OR Deas serted to SDATA Hi gh-Z (Hold Time)
PData V alid to SDATA Valid
Time Out
Ax V alid to nI OR Asserted
nIO R Deassert ed to Ax Invalid
Command Deasserted to nWAIT Deasserted
nIOR Deass erted to nI OW or nI OR Asserted
nI OR Asserted t o C ommand Asserted
FIGURE 18 - EPP 1.7 DATA OR ADDRESS READ CYCLE
t19
t23
Parameter
t8
t3
t5
t15
156
t13
min
10
40
10
40
0
0
0
0
0
0
t10
t11
max
t2
50
40
24
50
40
40
12
55
t20
t12
t4
unit s
t22
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
ns
ns
ns
t21
Notes