S25FL129P Meet Spansion Inc., S25FL129P Datasheet - Page 13

• Manufacturer Part Number: S25FL129P
• Description: 128-mbit Cmos 3.0 Volt Flash Memory With 104-mhz Spi Serial Peripheral Interface Multi I/o Bus
• Manufacturer: Meet Spansion Inc.

6.
November 2, 2009 S25FL129P_00_04
Spansion SPI Modes
A microcontroller can use either of its two SPI modes to control Spansion SPI Flash memory devices:
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
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.
CPOL = 0, CPHA = 0 (Mode 0)
CPOL = 1, CPHA = 1 (Mode 3)
SCK remains at 0 for (CPOL = 0, CPHA = 0 Mode 0)
SCK remains at 1 for (CPOL = 1, CPHA = 1 Mode 3)
Mode 0
Mode 3
CS3
SPI Interface with
(CPOL, CPHA) =
Bus Master
(0, 0) or (1, 1)
D a t a
CS2
CPOL
0
1
CS1
CPHA
S h e e t
0
1
Figure 6.1 Bus Master and Memory Devices on the SPI Bus
SCK
SCK
CS#
SO
SI
SCK
SO
SI
( P r e l i m i n a r y )
Figure 6.2 SPI Modes Supported
S25FL129P
MSB
CS#
SCK SO SI
SPI Memory
Device
W#/ACC
HOLD#
Figure 6.2
CS#
SCK SO SI
SPI Memory
Device
W#/ACC
for each of the two modes:
HOLD#
MSB
CS#
SCK SO SI
SPI Memory
W#/ACC
Device
HOLD#
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