Datasheet

M93C46, M93C56, M93C66, M93C76, M93C86 Instructions
Doc ID 4997 Rev 12 15/34
5.6 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 5, Table 6 and Table 7.
AI00880C
SWRITE
ALL
DATA IN
D
Q
ADDR
OP
CODE
Dn D0
BUSY READY
CHECK
STATUS
1
0
00 1
Xn X0