26HS01GTAM03 datasheet(37/166 Pages) INFINEON

37 / 166 page

Datasheet

37 of 166

002-12337 Rev. *Y

2022-01-18

256Mb/512Mb/1Gb SEMPER™ Flash

HYPERBUS™ interface, 1.8V/3.0V

Features

Figure 25

CrC-32 data ordering

Note Any invalid transaction during CRC check-value calculation can corrupt the check-value data.

4.4.1

HYPERBUS™ data integrity check related registers and transactions

4.4.2

Legacy (x1) SPI data integrity check related registers and transactions

4.5

Data protection schemes

Data protection is required to safeguard against unintended changes to stored data and device configuration.

This includes inadvertent erasing or programming the memory array as well as writing to the Configuration

registers, which can alter the functionality of the device. Three types of protection schemes are discussed which

range from protecting either a single or a group of sectors or the complete memory array. Figure 26 shows an

overview of different protection schemes along with applicable data regions.

Table 22

HYPERBUS™ data integrity CRC related registers and transactions

Related registers

(see Section 5.2 HYPERBUS™ registers on page 90)

Related HYPERBUS™ transactions

(see Table 120 on page 124)

Status Register (STRV)

Read Status Register (RDVSTR_2_0)

Clear Status Register Failure Flags (CLVSTR_1_0)

Load Start Address (LDSTAD_1_1) - Data Integrity Check ASO

Load End Address (LDENAD_1_1) - Data Integrity Check ASO

Read Data Integrity CRC Register Upper Word (RDDICU_2_1) - Data Integrity

Check ASO

Read Data Integrity CRC Register Lower Word (RDDICL_2_1) - Data Integrity

Check ASO

Data Integrity CRC Check-Value Register (DCRV)

Table 23

Legacy (x1) SPI data integrity CRC related registers and transactions

Related registers

(see Section 5.3 Legacy (x1) SPI registers on page 106)

Related SPI transactions

(see Table 122 on page 137)

Status Register 1 (STR1N, STR1V)

Data Integrity Check (DICHK_4_1)

Status Register 2 (STR2V)

Suspend Erase/Program/Data Integrity Check (SPEPD_0_0)

Data Integrity CRC Check-Value Register (DCRV)

Resume Erase/Program/ Data Integrity Check (RSEPD_0_0)

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