Datasheet

DocID4997 Rev 15 15/33
M93C86-x M93C76-R M93C66-x M93C56-x M93C46-x Instructions
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5.2.3 Write All
As with the Erase All Memory (ERAL) instruction, the format of the Write All Memory with
same Data (WRAL) instruction requires that a dummy address be provided. As with the
Write Data to Memory (WRITE) instruction, the format of the Write All Memory with same
Data (WRAL) instruction requires that an 8-bit data byte, or 16-bit data word, be provided.
This value is written to all the addresses of the memory device. The completion of the cycle
can be detected by monitoring the READY/
BUSY line, as described next.
Figure 6. WRAL sequence
1. For the meanings of Xn and Dn, please see Table 4, Table 5 and Table 6.
AI00880C
SWRITE
ALL
DATA IN
D
Q
ADDR
OP
CODE
Dn D0
BUSY READY
CHECK
STATUS
1
0
00 1
Xn X0