26HS01GTAM03 datasheet(65/166 Pages) INFINEON

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Datasheet

65 of 166

002-12337 Rev. *Y

2022-01-18

256Mb/512Mb/1Gb SEMPER™ Flash

HYPERBUS™ interface, 1.8V/3.0V

Features

4.10

Program

There are program transactions for programming data into the device. These program transactions can use any

of these two protocols:

• HYPERBUS™ interface with DDR - Program Registers, the Memory Array, SSR, Persistent Protection Bits, Dynamic

Protection Bits, Clear ECC Status and Clear PPB Lock bit.

• Legacy (x1) SPI interface with SDR - Program the Memory Array, SSR, and Persistent Protection Bits.

4.10.1

HYPERBUS™

4.10.1.1

Word programming

Word programming is used to program a single word or a group of words anywhere in the flash memory arrays.

The minimum Word Programming command sequence requires four command write transactions. The program

command sequence is initiated by issuing two unlock command write transactions (transactions one and two),

followed by the program set-up command (transaction three). The program address and data are written next

(transaction four), which in turn initiates the Embedded Programming algorithm. The system is not required to

provide further controls or timing. The device automatically generates the program pulses and verifies the

programmed cell margin internally. When the Embedded Programming algorithm is complete, the EAC then

returns to its Standby State.

The four transaction Word Programming command sequence described earlier is used to program a single

(16-bit) word (two bytes). Multiple sequential words can be programmed with the Word Programming sequence

by using the burst write capability. The unlock and program command sequence is identical to a single Word

Programming sequence but during the data / address transaction multiple sequential data values are loaded

during a single assertion of CS#. The data presented is programmed into sequential addresses starting with the

target address identified in the Command-Address phase of the burst write transaction. A maximum of 256 words

(512-Byte) can be programmed as long as an aligned 256 word (512-Byte) address boundary is not crossed.

The system can determine the status of the program operation by reading the Status Register (see Error types

and reporting - HYPERBUS™ on page 80).

Any commands other than Program Suspend and Status Register Read written to the device during the

Embedded Program algorithm are ignored.

Note that a Hardware Reset (RESET# = VIL) or power loss immediately terminates the programming operation and

returns the device to Read mode after tRPH time. The termination may leave the area being programmed in an

intermediate state with invalid or unstable data values. Once the device has completed the Hardware Reset

operation, the program command sequence may be reinitiated with the same data to complete the

programming operation, to ensure the data is fully programmed. However, to ensure the best data integrity, the

sector in which the program operation was terminated must be erased and re-programed.

The Word Programming command may also be used when the SSR ASO is entered.

A modified version of the Word Programming command, without unlock write cycles, is used for programming

when entered into the Advanced Sector Protection, Password, and PPB ASOs. The same command is used to

change volatile bits when entered into the PPB Lock, and DYB ASOs.

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