M58BW16FB4T3 STMICROELECTRONICS [STMicroelectronics], M58BW16FB4T3 Datasheet - Page 13

• Manufacturer Part Number: M58BW16FB4T3
• Description: 16 or 32 Mbit (x32, Boot Block, Burst) 3.3V supply Flash memories
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M58BW16F, M58BW32F
1.1
Block Protection
The M58BWxxF features four different levels of block protection.
After a device reset the first two kinds of block protection (WP, RP) can be combined to give
a flexible block protection. All blocks are protected at power-up.
Write Protect Pin, WP, - When WP is Low, V
configured in the Block Protection Configuration Register is activated. The Block
Protection Configuration Register is volatile. Any combination of blocks is possible. Any
attempt to program or erase a protected block will return an error in the Status Register
(see
Reset/Power-Down Pin, RP, - If the device is held in reset mode (RP at V
program or erase operation can be performed on any block.
Program/Erase Enable, PEN
blocks by preventing Program and Erase operations from modifying the data.
Prior to issuing a Program or Erase command, the Program/Erase Enable must be set
to High (V
error is generated in the Status Register.
Permanent protection against Modify operations - specific OTP-like blocks can be
permanently protected against Modify operations (program/ erase):
–
–
This protection is user-enabled. Details of how this protection is activated are provided
in a dedicated application note.
in the M58BW32F, a unique 128-Kbit parameter block – Block 1 (01000h-01FFFh)
for bottom devices or Block 72 (FE000h-FEFFFh) for Top devices
in the M58BW16F, two 64-Kbit parameter blocks – Blocks 2 & 3 (01000h-01FFFh)
for bottom devices or Blocks 36 & 35 (7E000h-7EFFFh) for top devices
Table 13: Status Register
IH
). If it is Low (V
IL
), the Program or Erase operation is not accepted and an
,
Bits).
- The Program/Erase Enable input, PEN, protects all
IL
, the protection status that has been
IL
Description
), no
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