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Numonyxâ„¢ Wireless Flash Memory (W30)

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Table 18: Command Codes and Descriptions (Sheet 2 of 2)<br />

Operation Code<br />

Protection C0h<br />

Configuration<br />

60h<br />

03h<br />

Protection<br />

Program<br />

Setup<br />

Configuration<br />

Setup<br />

Set<br />

Configuration<br />

Register<br />

Numonyx <strong>Wireless</strong> <strong>Flash</strong> <strong>Memory</strong> (<strong>W30</strong>) (<strong>W30</strong>)<br />

This command prepares the CUI for a protection register program operation. The<br />

second cycle latches address and data, and starts the WSM protection register<br />

program or lock algorithm. Toggling CE# or OE# updates the flash device status<br />

register data. To read array data after programming, issue a Read Array<br />

command.<br />

This command prepares the CUI for flash device configuration. If Set<br />

Configuration Register is not the next command, the CUI sets SR[5:4] to indicate<br />

a command sequence error.<br />

If the previous command was Configuration Setup (60h), the CUI latches the<br />

address and writes the data from A[15:0] into the configuration register.<br />

Subsequent read operations access the array data.<br />

Note: Do not use unassigned commands. Numonyx reserves the right to redefine these codes for future functions.<br />

Table 19: Bus Cycle Definitions<br />

Operation Command<br />

Read<br />

Program<br />

and<br />

Erase<br />

Lock<br />

<strong>Flash</strong> Device<br />

Command<br />

Bus<br />

Cycles<br />

First Bus Cycle Second Bus Cycle<br />

Oper Addr 1<br />

Description<br />

Data 2,3<br />

Read Array/Reset > 1 Write PnA FFh Read<br />

Oper Addr 1<br />

Read<br />

Address<br />

Data 2,3<br />

Datasheet November 2007<br />

52 Order Number: 290702-13<br />

Array<br />

Data<br />

Read Identifier > 2 Write PnA 90h Read PBA+IA IC<br />

Read Query > 2 Write PnA 98h Read PBA+QA QD<br />

Read Status Register 2 Write PnA 70h Read PnA SRD<br />

Clear Status Register 1 Write XX 50h<br />

Block Erase 2 Write BA 20h Write BA D0h<br />

Word Program 2 Write WA 40h/10h Write WA WD<br />

EFP >2 Write WA 30h Write WA D0h<br />

Program/Erase Suspend 1 Write XX B0h<br />

Program/Erase Resume 1 Write XX D0h<br />

Lock Block 2 Write BA 60h Write BA 01h<br />

Unlock Block 2 Write BA 60h Write BA D0h<br />

Lock-Down Block 2 Write BA 60h Write BA 2Fh

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