Rainbow Electronics br9080af-w - Manual (Page 11)

BR9080AF-W / BR9080ARFV-W / BR9080ARFVM-W /
Memory ICs BR9016AF-W / BR9016ARFV-W / BR9016ARFVM-W
11/12
(3) Canceling modes
1) Read commands
32 Clock
Start bit
4 bits 4 bits 8 bits
16 bits
Cancel can be performed for the entire read mode space
Data DO D15
Operating code Address
SK
CS
DI
DO
WC HIGH or LOW
Fig.10
Cancellation method: CS HIGH
2) Write commands
32 Clock
Start bit
4 bits
c
4 bits 8 bits 16 bits
DO D15 Operating code Address Data
SK
CS
DI
R / B
WC
tE / W
d b a
Fig.11
Canceling methods
a : Canceled by setting CS HIGH. The WC pin is not involved.
b : If the WC pin goes HIGH for even a second, writing is forcibly interrupted. Cancellation occurs even if the CS pin is
HIGH. At this point, data has not been written to the memory, so the data in the designated address has not yet
been changed.
c : The operation is forcibly canceled by setting the WC pin to HIGH or turning off the power supply (although we do
not recommend using this method). The data in the designated address is not guaranteed and should be written
once again.
d : If CS is set to HIGH while the R / B signal is HIGH (following the tE / W timing), the IC is reset internally, and waits
for the next command to be input.