Rabbit 3000, User Manual

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206 Rabbit 3000 Microprocessor
The following I/O read time delays were measured.
The measurements were taken at the 50% points under the following conditions.
•
T = -40°C to 85°C, V = 3.3 V
•
Internal clock to nonloaded CLK pin delay 1 ns @ 85°V/4.5 V
The following I/O write time delays were measured.
The measurements were taken at the 50% points under the same conditions that the I/O
read delays were measured.
I/O bus cycles have an automatic wait state and thus require 3 clocks plus any extra wait
states specified.
See Table 16-2 for delays at other voltages.
Table 16-5. I/O Read Time Delays
Time Delay
Output Capacitance
30 pF 60 pF 90 pF
Clock to address delay (T
adr
)
6 ns 8 ns 11 ns
Clock to memory chip select delay (T
CSx
)
6 ns 8 ns 11 ns
Clock to I/O chip select delay (T
IOCSx
)
6 ns 8 ns 11 ns
Clock to I/O read strobe delay (T
IORD
)
6 ns 8 ns 11 ns
Clock to I/O buffer enable delay (T
BUFEN
)
6 ns 8 ns 11 ns
Data setup time (T
setup
)
1 ns
Data hold time (T
hold
)
1 ns
Table 16-6. I/O Write Time Delays
Time Delay
Output Capacitance
30 pF 60 pF 90 pF
Clock to address delay (T
adr
)
6 ns 8 ns 11 ns
Clock to memory chip select delay (T
CSx
)
6 ns 8 ns 11 ns
Clock to I/O chip select delay (T
IOCSx
)
6 ns 8 ns 11 ns
Clock to I/O write strobe delay (T
IOWR
)
6 ns 8 ns 11 ns
Clock to I/O buffer enable delay (T
BUFEN
)
6 ns 8 ns 11 ns