HN58X2508I Datasheet, PDF (23/29 Pages) Renesas Technology Corp – Electrically Erasable and Programmable Read Only Memory

HN58X2508I/HN58X2516I
Protection Modes
Memory protect
W signal SRWD bit Mode
Write protection of
the status register Protected area*¹ Unprotected area*¹
1
0
Software
Status register is
Write protected Ready to accept
protected
writable (if the WREN)
Write instructions
(SPM)
instruction has set the
WEL bit). The values
in the BP1 and BP0
bits can be changed.
0
0
1
1
0
Note:
1
Hardware
Status register is
Write protected Ready to accept
protected
hardware write
Write instructions
(HPM)
protected. The values
in the BP1 and BP0
bits cannot be
changed.
1. As defined by the values in the Block Protected (BP1, BP0) bits of the Status Register, as shown in
the former table.
Rev.2.00, Aug.19.2004, page 23 of 27