br9016 ROHM Co. Ltd., br9016 Datasheet - Page 10

• Manufacturer Part Number: br9016
• Description: 8k, 16k Bit Eeproms For Direct Connection To Serial Ports
• Manufacturer: ROHM Co. Ltd.

Memory ICs
(3) Canceling modes
1) Read commands
2) Write commands
Cancellation method: CS HIGH
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
c : The operation is forcibly canceled by setting the WC pin to HIGH or turning off the power supply (although we do not
d : If CS is set to HIGH while the R / B signal is HIGH (following the t
HIGH. At this point, data has not been written to the memory, so the data in the designated address has not yet
been changed.
recommend using this method). The data in the designated address is not guaranteed and should be written once
again.
the next command to be input.
SK
CS
DI
DO
WC
SK
DI
R / B
WC
CS
HIGH or LOW
Start bit
Start bit
4 bits
4 bits
a
Operating code
Operating code
4 bits
4 bits
32 Clock
Cancel can be performed for the entire read mode space
Address
8 bits
Address
8 bits
b
DO
32 Clock
16 bits
Fig.10
Data
BR9080 / BR9080F / BR9080RFV /
Fig.11
BR9016 / BR9016F / BR9016RFV
DO
D15
16 bits
E / W
Data
timing), the IC is reset internally, and waits for
t
E
/
c
W
D15
d