USB97C100 Standard Microsystems Corporation, USB97C100 Datasheet - Page 60

• Manufacturer Part Number: USB97C100
• Description: USB97C100 Multi-endpoint Usb Peripheral Controller(not Recommended For Designs)
• Manufacturer: Standard Microsystems Corporation

Note:
SMSC DS – USB97C100
nRD
FD
FA]
FALE
t10
t11
Min and Max delays shown for an 8051 clock of 24MHz, to calculate timing delays for other clock
frequencies use the Oscillator Equations, where T=1/Fclk.
t1
t2
t3
t4
t7
t8
t9
FA Valid to nRD asserted
nRD active pulse width
nRD deasserted to FA Invalid
nRD asserted to Data Valid
FD data Hold from nRD
deasserted
nRD deasserted to FD data tri-
state
FALE active pulse width
FA address Valid to FALE
deasserted
FALE deasserted to nRD asserted
PARAMETER
Table 93 - 8051 Flash Program Fetch Timing Parameters
FIGURE 15 - 8051 FLASH PROGRAM FETCH TIMING
t9
t10
t1
t11
21.66
21.66
Page 60
MIN
105
64
32
53
0
0
t4
DATA VALID
TYP
t2
MAX
32
t7
OSCILLATOR
EQUATION
2t-20
3t-20
2t-30
t10
t-10
t-10
t-20
t-20
t8
t3
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
Rev. 01/03/2001