M58BW016DB datasheet(26/63 Pages) STMICROELECTRONICS

26 / 63 page

M58BW016BT, M58BW016BB, M58BW016DT, M58BW016DB

26/63

gram failure.

Programming aborts if VPP drops out of the al-

lowed range or RP goes to VIL.

A Read Memory Array command must be issued

to return the memory to read mode before issuing

any other commands. Once the code has been

changed a device reset or power-down will make

the protection active with the new code.

See Appendix B, Figure 25, 26 and 27 for suggest-

ed flowcharts for using the Tuning Protection Pro-

gram command.

Table 9. Commands

Note: 1. X Don’t Care; RA Read Address, RD Read Data, ID Device Code, SRD Status Register Data, PA Program Address; PD Program

Data, QA Query Address, QD Query Data, BA Any address in the Block, BCR Burst Configuration Register value, TPA = Tuning

Protection Address, TPC = Tuning Protection Code.

2. Cycles 1 and 2 input the first 32 bits of the code, cycles 3 and 4 the second 32 bits of the code.

Command

Bus Operations

1st Cycle

2nd Cycle

3rd Cycle

4th Cycle

Op.

Addr.

Data

Op.

Addr.

Data

Op.

Addr. Data Op.

Addr.

Data

Read Memory Array

≥ 2 Write

FFh

Read

Read Electronic Signature

(Manufacturer Code)

≥ 2 Write

90h

Read 00000h

20h

Read Electronic Signature

(Device Code)

≥ 2 Write

90h

Read 00001h

IDh

Read Electronic Signature

(Burst Configuration

≥ 2 Write

90h

Read 00005h BCRh

Read Status Register

Write

70h

Read

SRDh

Read Query

≥ 2 Write

98h

Read

QAh

QDh

Clear Status Register

Write

50h

Block Erase

Write

20h

Write

BAh

D0h

Program

Write

40h

10h

Write

Program/Erase Suspend

Write

B0h

Program/Erase Resume

Write

D0h

Set Burst Configuration

Write

60h

Write

BCRh

03h

Tuning Protection(2)

Program

Write

48h

Write

TPAh

TPCh Write

48h Write TPAh TPCh

Tuning Protection Unlock(2)

Write

78h

Write

TPAh

TPCh Write

78h Write TPAh TPCh

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