28HS01GTAM03 datasheet(89/138 Pages) INFINEON

89 / 138 page

Datasheet

89 of 138

002-18216 Rev. *W

2022-01-18

256Mb/512Mb/1Gb SEMPER™ Flash

Octal interface, 1.8V/3.0V

Registers

5.16

ASP password register (PWDO)

The ASP Password Register (PWDO) is used to permanently define a password.

5.17

ASP PPB lock register (PPLV)

The PPBLCK bit in the ASP PPB Lock Register (PPLV) is used to protect the PPB bits.

5.18

ASP PPB access register (PPAV)

The ASP PPB Access Register (PPAV) is used to provide the state of each sector's PPB protection bit.

Table 62

Password register

Bit

number

Name

Function

Read/Write

N = Nonvolatile

V = Volatile

Factory default

(binary)

Description

PWDO[63:0] PASWRD[63:0] Password Register

N -> R/1

0xFFFFFFFFFFFF

FFFF

Description: The PASWRD[63:0] permanently stores a

password used in password protected modes of operation.

When the Password Protection Mode is enabled, this register

will output the undefined data upon read password request.

Selection Options: Password

Dependency: N/A

Table 63

ASP PPB lock register

Bit

number

Name

Function

Read/Write

N = Nonvolatile

V = Volatile

Factory default

(binary)

Description

PPLV[7:1]

RESVRD

Reserved for

Future Use

V -> R

0000000

This bit is Reserved for future use. This bit must always be

written/loaded to its default state.

PPLV[0]

PPBLCK

PPB Temporary

Protection

Selection

V -> R/W

1, ASPO[2:1]

Description: The PPBLCK bit is used to temporarily protect all

the PPB bits.

Selection Options:

1 = PPB Bits can be erased or programmed

0 = PPB bits are protected against erase or program till the next

POR or hardware reset

Dependency: N/A

Table 64

ASP PPB access register

Bit

number

Name

Function

Read/Write

N = Nonvolatile

V = Volatile

Factory default

(binary)

Description

PPAV[7:0]

PPBACS[7:0]

Sector Based PPB

Protection Status

N -> R/W

11111111

Description: The PPBACS[7:0] bits are used to provide the state

of the individual sector's PPB bit.

Selection Options:

FF = PPB for the sector addressed by the Read PPB transaction

(RDPPB_4_0) is 1, not protecting that sector from program or

erase operations

00 = PPB for the sector addressed by the Read PPB transaction

(RDPPB_4_0) is 0, protecting that sector from program or erase

operations

Dependency: N/A

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