306666-11 Datasheet, PDF (47/99 Pages) Numonyx B.V – Numonyx StrataFlash Embedded Memory

P30
Table 24: Command Codes and Definitions (Sheet 2 of 2)
Mode
Code
Device Mode
Description
Block Locking/
Unlocking
Protection
Configuration
0x60
0x01
0xD0
0x2F
0xC0
0x60
0x03
Lock Block Setup
Lock Block
Unlock Block
Lock-Down Block
Program Protection
Register Setup
Read Configuration
Register Setup
Read Configuration
Register
First cycle of a 2-cycle command; prepares the CUI for block lock
configuration changes. If the next command is not Block Lock (0x01), Block
Unlock (0xD0), or Block Lock-Down (0x2F), the CUI sets Status Register bits
SR[4] and SR[5], indicating a command sequence error.
If the previous command was Block Lock Setup (0x60), the addressed block
is locked.
If the previous command was Block Lock Setup (0x60), the addressed block
is unlocked. If the addressed block is in a lock-down state, the operation has
no effect.
If the previous command was Block Lock Setup (0x60), the addressed block
is locked down.
First cycle of a 2-cycle command; prepares the device for a Protection
Register or Lock Register program operation. The second cycle latches the
register address and data, and starts the programming algorithm
First cycle of a 2-cycle command; prepares the CUI for device read
configuration. If the Set Read Configuration Register command (0x03) is not
the next command, the CUI sets Status Register bits SR[4] and SR[5],
indicating a command sequence error.
If the previous command was Read Configuration Register Setup (0x60), the
CUI latches the address and writes A[15:0] to the Read Configuration
Register. Following a Configure Read Configuration Register command,
subsequent read operations access array data.
November 2007
Order Number: 306666-11
Datasheet
47