t1
t1
t2
t2
SA25–SA0
GPIO_CSx
IOW
IOR
IOCHRDY
SD7–SD0/SD15–SD0
(Write)
D7–D0/D15–D0
(Read)
Notes:
See the ISA bus section on page 105 for detailed timings between these signals.
Figure 50. I/O Decode (R/W), Address Decode Only
SA25–SA0
GPIO_CSx
t6
t4
t3
t5
IOW
IOR
IOCHRDY
SD7–SD0/SD15–SD0
(Write)
SD7–SD0/SD15–SD0
(Read)
Notes:
See the ISA bus section on page 105 for detailed timings between these signals.
Figure 51. I/O Decode (R/W), Command Qualified
116
Élan™SC400 and ÉlanSC410 Microcontrollers Data Sheet