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FLASH MEMORY VERSION
19.1 Parallel input/output mode
(5) Software command
In the read/write mode, the built–in flash memory is accessed by input (execution) of the software
command.
Table 19.1.5 lists the software command. The software command is executed by data input/output
in the first and second cycles. The command code is input to select the operation of the built–in flash
memory in the first cycle. The data etc. are input/output in the second cycle.
The following explains each software command.
Table 19.1.5 Software command and input/output information
Software command
Read
Program
Program verify
Erase
Verify address
Erase verify
Reset
Device identification
Note:
can be V
or V
IL
ADI (Device identification address) : Manufacture's code 00000
DDI (Device identification data) : Manufacture's code 1C
19–10
First cycle
Address input
Data (command code) input
.
IH
7751 Group User's Manual
Address input
Read address
00
16
Program address
40
15
C0
16
20
16
A0
16
FF
16
ADI
90
16
; device code 00001
16
; device code D0
16
Second cycle
Data I/O
Read data output
Program data input
Verify data output
20
(command code) input
16
Verify data output
FF
(command code) input
16
DDI output
16
16
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