S25FL127SABMFI003 查看數據表（PDF） - Cypress Semiconductor

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S25FL127SABMFI003

128-Mbit (16 Mbyte) 3.0 V SPI Flash Memory

Cypress Semiconductor 

S25FL127S

12.4 Registers

The register maps are copied in this section as a quick reference. See Registers on page 50 for the full description of the register

contents.

Table 62. Status Register 1 (SR1)

Bits

Field

Name

Function

Type

Default State

Description

7

SRWD

Status Register

Write Disable

Non-Volatile

1 = Locks state of SRWD, BP, and configuration

0

register bits when WP# is low by ignoring WRR

command

0 = No protection, even when WP# is low

6

P_ERR

Programming

Error Occurred

Volatile, Read only

0

1 = Error occurred

0 = No Error

5

E_ERR

Erase Error

Occurred

Volatile, Read only

0

1= Error occurred

0 = No Error

4

3

2

BP2

BP1

BP0

Block

Protection

Volatile if CR1[3]=1,

Non-Volatile if

CR1[3]=0

1 if CR1[3]=1,

0 when Protects selected range of sectors (Block) from

shipped from Program or Erase

Cypress

1

WEL

Write Enable

Latch

Volatile

1 = Device accepts Write Registers (WRR), program

or erase commands

0

0 = Device ignores Write Registers (WRR), program

or erase commands

This bit is not affected by WRR, only WREN and

WRDI commands affect this bit.

0

WIP

Write in

Progress

Volatile, Read only

1= Device Busy, a Write Registers (WRR), program,

0

erase or other operation is in progress

0 = Ready Device is in standby mode and can accept

commands

Table 63. Configuration Register (CR1)

Bits Field Name

Function

Type

7

LC1

6

LC0

Latency Code

Non-Volatile

5

TBPROT

Configures Start of

Block Protection

OTP

4

RFU

RFU

OTP

3

BPNV

Configures BP2-0 in

Status Register

OTP

2

TBPARM

Configures Parameter

Sectors location

OTP

1

QUAD

Puts the device into

Quad I/O operation

Non-Volatile

Lock current state of

BP2-0 bits in Status

0

FREEZE

Register, TBPROT and

TBPARM in

Volatile

Configuration Register,

and OTP regions

Default

State

Description

0 Selects number of initial read latency cycles

0 See Latency Code Tables

0

1 = BP starts at bottom (Low address)

0 = BP starts at top (High address)

0 Reserved for Future Use

0

1 = Volatile

0 = Non-Volatile

1 = 4-kB physical sectors at top, (High address)

0 0 = 4-kB physical sectors at bottom (Low address)

RFU in uniform sector devices.

0

1 = Quad

0 = Dual or Serial

0

1 = Block Protection and OTP locked

0 = Block Protection and OTP un-locked

Document Number: 001-98282 Rev. *I

Page 134 of 142

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