S25FS256S datasheet(101/154 Pages) SPANSION

101 / 154 page

November 6, 2013 S25FS-S_00_04

S25FS-S Family

101

Da ta

Shee t

(Prelim i nar y )

10.3.12

Read Any Register (RDAR 65h)

The Read Any Register (RDAR) command provides a way to read all device registers - non-volatile and

volatile. The instruction is followed by a 3- or 4-byte address (depending on the address length configuration

CR2V[7], followed by a number of latency (dummy) cycles set by CR2V[3:0]. Then the selected register

contents are returned. If the read access is continued the same addressed register contents are returned until

the command is terminated - only one register is read by each RDAR command.

Reading undefined locations provides undefined data.

The RDAR command may be used during embedded operations to read Status Register 1 (SR1V).

The RDAR command is not used for reading registers that act as a window into a larger array: PPBAR, and

DYBAR. There are separate commands required to select and read the location in the array accessed.

The RDAR command will read invalid data from the PASS register locations if the ASP Password protection

mode is selected by programming ASPR[2] to 0.

Table 10.3 Register Address Map

Byte Address (Hex)

Description

00000000

SR1NV

Non-Volatile Status and Configuration Registers

00000001

N/A

00000002

CR1NV

00000003

CR2NV

00000004

CR3NV

00000005

CR4NV

...

N/A

00000010

NVDLR

Non-Volatile Data Learning Register

...

N/A

00000020

PASS[7:0]

Non-Volatile Password Register

00000021

PASS[15:8]

00000022

PASS[23:16]

00000023

PASS[31:24]

00000024

PASS[39:32]

00000025

PASS[47:40]

00000026

PASS[55:48]

00000027

PASS[63:56]

...

N/A

00000030

ASPR[7:0]

Non-Volatile

00000031

ASPR[15:8]

...

N/A

00800000

SR1V

Volatile Status and Configuration Registers

00800001

SR2V

00800002

CR1V

00800003

CR2V

00800004

CR3V

00800005

CR4V

...

N/A

00800010

VDLR

Volatile Data Learning Register

...

N/A

00800040

PPBL

Volatile PPB Lock Register

...

N/A

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