lrs1830 Sharp Microelectronics of the Americas, lrs1830 Datasheet - Page 46

• Manufacturer Part Number: lrs1830
• Description: Stacked Chip 256m X16 Boot Block Flash And 32m X16 Scram
• Manufacturer: Sharp Microelectronics of the Americas

7.6.2 Cautions for Setting Mode Register
at every cycle during entry (read cycle twice, write cycle twice), and toggle S-OE like SC-CE
cycles.
register are not performed correctly.
cancelled.
the power supply. However, the mode register setting will become undefined if the power is turned off, so set the mode
register again after power application.
Chart (P.56).
sharp
Since, for the mode register setting, the internal counter status is judged by toggling SC-CE
If incorrect addresses or data are written, or if addresses or data are written in the incorrect order, the setting of the mode
When the highest address (1FFFFFH) is read consecutively three or more times, the mode register setting entries are
Once the sleep mode has been set in the mode register, these settings are retained until they are set again, while applying
For the timing chart and flow chart, refer to Mode Register Setting Timing Chart (P.55), Mode Register Setting Flow
L R S1 8 3 0
1
1
at the first and second read
and S-OE, toggle SC-CE
43
1