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Data Sheet
SC-604
© 2002 Sensory Inc.
P/N 80-0208-B
5
Timing Diagram
Write to Slave
1. Slave signals readiness to receive data from host.
2. Slave drops INRDY.
3. Host drops R/W to indicate a write.
4. Host drops STROBE.
5. Host places data on the bus.
6. Host raises STROBE indicating data is valid.
7. Slave raises INRDY, latching the data.
8. INT3 is triggered when INRDY rises.
Read from Slave
1. Slave signals readiness to send data to host.
2. Slave drops OUTRDY.
3. Host raises R/W to indicate a read.
4. Host drops STROBE.
5. Slave places data on the bus.
6. Host raises STROBE after reading the data.
7. Slave raises OUTRDY.
8. INT4 is triggered when OUTRDY rises.
Timing Constrains
Write to Slave
Read from Slave
INRDY low to STROBE low
tIS (min) = 5 ns
OUTRDY low to STROBE low
tOS (min) = 5 ns
R/W to STROBE low
tRS (min) = 75 ns
R/W to STROBE low
tRS (min) = 75 ns
STROBE low
tST (min) = 100 ns STROBE low
tST (min) = 100 ns
STROBE high to R/W
tSR (min) = 25 ns
STROBE high to R/W
tSR (min) = 25 ns
STROBE high to INRDY high
tSI (max) = 75 ns
STROBE high to OUTRDY high
tSO (max) = 75 ns
Data setup
tS (min) = 15 ns
STROBE Low to data valid
tDV (max) = 90 ns
Data hold
tH (min) = 80 ns
STROBE High to data high Z
tDZ (min) = 90 ns
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