Technical information

71
3886 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
● Reset command
The reset command provides a means of stopping execution of
the erase or program command safely. If the user inputs command
code FF16 in the second cycle after inputting the erase or program
command in the first cycle and again input command code FF16 in
the third cycle, the erase or program command is disabled (i.e.,
reset), and the M38869FFAHP/GP is placed in the read mode. If
the reset command is executed, the contents of the memory does
not change.
● Device identification code command
By inputting command code 9016 in the first cycle, the user can
read out the device identification code. The command code is
latched into the internal command latch at the rising edge of the
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WE input. At this time, the user can read out manufacture’s code
1C16 (i.e., MITSUBISHI) by inputting 000016 to the address input
pins in the second cycle; the user can read out device code D016
(i. e., 1M-bit flash memory) by inputting 000116.
These command and data codes are input/output at the same tim-
ing as for read.