S70FS01GS datasheet(75/141 Pages) CYPRESS

75 / 141 page

S70FS01GS

Document Number: 002-03833 Rev. *C

Page 75 of 141

Notes

1. Commands not supported in QPI mode have undefined behavior if sent when the device is in QPI mode.

2. The FS01GS does not support some commands and adds some commands. For additional information see Section 12.4 FS01GS Behavior and Software

Modifications on page 134.

9.1.4

Read Device Identification

There are multiple commands to read information about the device manufacturer, device type, and device features. SPI memories

from different vendors have used different commands and formats for reading information about the memories. The FS-S Family

supports the three device information commands.

9.1.5

There are multiple registers for reporting embedded operation status or controlling device configuration options. There are

commands for reading or writing these registers. Registers contain both volatile and non-volatile bits. Non-volatile bits in registers

are automatically erased and programmed as a single (write) operation.

9.1.5.1

Monitoring Operation Status

The host system can determine when a write, program, erase, suspend or other embedded operation is complete by monitoring the

Write in Progress (WIP) bit in the Status Register. The Read from Status Register-1 command or Read Any Register command

provides the state of the WIP bit. The program error (P_ERR) and erase error (E_ERR) bits in the status register indicate whether

the most recent program or erase command has not completed successfully. When P_ERR or E_ERR bits are set to one, the WIP

bit will remain set to one indicating the device remains busy and unable to receive most new operation commands. Only Read Any

commands when P_ERR or E_ERR is set to 1. A Clear Status Register (CLSR) followed by a Write Disable (WRDI) command must

be sent to return the device to standby state. Clear Status Register clears the WIP, P_ERR, and E_ERR bits. WRDI clears the WEL

bit. Alternatively, Hardware Reset, or Software Reset (RST or RESET) may be used to return the device to standby state.

Advanced

Sector

Protection

DYBRD

DYB Read

133

3 or 4

Yes

4DYBRD

DYB Read

133

Yes

DYBWR

DYB Write

133

3 or 4

Yes

4DYBWR

DYB Write

133

Yes

PPBRD

PPB Read

133

3 or 4

4PPBRD

PPB Read

133

PPBP

PPB Program

133

3 or 4

4PPBP

PPB Program

133

PPBEA

PBB Erase Addressed

133

ASPRD

ASP Read

133

PLBRD

PPB Lock Bit Read

133

PLBWR

PPB Lock Bit Write

133

PASSRD

Password Read

133

PASSU

Password Unlock

133

Reset

RSTEN

Software Reset Enable

133

Yes

RST

Software Reset

133

Yes

RESET

Legacy Software Reset

133

MBR

Mode Bit Reset

133

Yes

DPD

Enter Deep Power Down Mode

133

Yes

RES

Release from Deep Power Down Mode

133

Yes

Table 9.1

FS-S Family Command Set (sorted by function) (Continued)

Function

Command Name

Command Description

instruction

Value (Hex)

Maximum

Frequency

(MHz)

Address

Length

(Bytes)

QPI

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