S25FL032P datasheet(28/60 Pages) CYPRESS

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Document Number: 002-00650 Rev. *L

Page 28 of 60

S25FL032P

Note

CFI data related to VCC and time-outs may differ from actual VCC and time-outs of the product. Please consult the Ordering Information tables to obtain the VCC range for

particular part numbers. Refer to Section 18., AC Characteristics on page 49 for typical timeout specifications.

9.8

Read-ID (READ_ID)

The READ_ID instruction provides the S25FL032P manufacturer and device information and is provided as an alternative to the

Release from Deep Power-Down and Read Electronic Signature (RES), and the JEDEC Read Identification (RDID) commands.

The instruction is initiated by driving the CS# pin low and shifting in (via the SI input pin) the instruction code “90h” followed by a

24-bit address (which is either 00000h or 00001h). Following this, the Manufacturer ID and the Device ID are shifted out on the SO

output pin starting after the falling edge of the SCK serial clock input signal. If the 24-bit address is set to 000000h, the Manufacturer

ID is read out first followed by the Device ID. If the 24-bit address is set to 000001h, then the Device ID is read out first followed by

the Manufacturer ID. The Manufacturer ID and Device ID are always shifted out on the SO output pin with the MSB first, as shown in

Figure 10-14. Once the device is in Read-ID mode, the Manufacturer ID and Device ID output data toggle between address

000000H and 000001H until terminated by a low to high transition on the CS# input pin. The maximum clock frequency for the

Read-ID (90h) command is at 104 MHz (FAST_READ). The Manufacturer ID and Device ID are output continuously until terminated

by a low to high transition on CS# chip select input pin.

Figure 19. Read-ID (RDID) Command Timing Diagram

4Ch

03h

Page Mode Type

00 = Not Supported, 01 = 4 Word Page, 02 = 8 Word Page,

03 = 256 Byte Page

4Dh

85h

ACC (Acceleration) Supply Minimum

00 = Not Supported, (D7-D4: Volt, D3-D0: 100 mV)

4Eh

95h

ACC (Acceleration) Supply Maximum

00 = Not Supported, (D7-D4: Volt, D3-D0: 100 mV)

4Fh

07h

W# Protection

07 = Uniform Device with Top or Bottom Write Protect (user select)

50h

00h

Program Suspend

00 = Not Supported, 01 = Supported

Table 15. Product Group CFI Primary Vendor-Specific Extended Query (Continued)

Byte

Data

Description

CS#

SCK

High Impedance

23 22 21

Instruction

24-Bit Address

Table 16. READ_ID Data-Out Sequence

Address

Uniform

Manufacturer Identification

00000h

01h

Device Identification

00001h

15h

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