S25FL032P datasheet(14/69 Pages) SPANSION

Part #	S25FL032P

Description	32-Mbit CMOS 3.0 Volt Flash Memory with 104-MHz SPI (Serial Peripheral Interface) Multi I/O Bus

PDF	69 Pages

Scroll/Zoom	100%

Manufacturer	SPANSION [SPANSION]

Direct Link	http://www.spansion.com

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14 / 69 page

S25FL032P

S25FL032P_00_09 January 29, 2013

Data

She e t

Spansion SPI Modes

A microcontroller can use either of its two SPI modes to control Spansion SPI Flash memory devices:

 CPOL = 0, CPHA = 0 (Mode 0)

 CPOL = 1, CPHA = 1 (Mode 3)

Input data is latched in on the rising edge of SCK, and output data is available from the falling edge of SCK for

both modes.

When the bus master is in standby mode, SCK is as shown in Figure 6.2 for each of the two modes:

 SCK remains at 0 for (CPOL = 0, CPHA = 0 Mode 0)

 SCK remains at 1 for (CPOL = 1, CPHA = 1 Mode 3)

Figure 6.1 Bus Master and Memory Devices on the SPI Bus

Note

The Write Protect/Accelerated Programming (W#/ACC) and Hold (HOLD#) signals should be driven high (logic level 1) or low (logic level 0)

as appropriate.

Figure 6.2 SPI Modes Supported

SPI Interface with

(CPOL, CPHA) =

(0, 0) or (1, 1)

Bus Master

CS3

CS2CS1

SPI Memory

Device

SPI Memory

Device

SPI Memory

Device

CS#

HOLD#

CS#

HOLD#

CS#

HOLD#

SCK SO SI

SCK

W#/ACC

MSB

SCK

CPHA

CPOL

CS#

Mode 0

Mode 3

S25FL032P Datasheet(PDF) 14 Page - SPANSION

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