S25FL128K Meet Spansion Inc., S25FL128K Datasheet - Page 35

• Manufacturer Part Number: S25FL128K
• Description: 128-mbit Cmos 3.0 Volt Flash Memory With 104-mhz Spi Serial Peripheral Interface Multi I/o Bus
• Manufacturer: Meet Spansion Inc.

April 1, 2011 S25FL128K_00_02
6.2.18
Quad Page Program (32h)
The Quad Page Program instruction allows up to 256 bytes of data to be programmed at previously erased
(FFh) memory locations using four pins: IO0, IO1, IO2, and IO3. The Quad Page Program can improve
performance for PROM Programmer and applications that have slow clock speeds <5 MHz. Systems with
faster clock speed will not realize much benefit for the Quad Page Program instruction since the inherent
page program time is much greater than the time it take to clock-in the data.
To use Quad Page Program the Quad Enable in Status Register-2 must be set (QE=1). A Write Enable
instruction must be executed before the device will accept the Quad Page Program instruction (Status
Register-1, WEL=1). The instruction is initiated by driving the CS# pin low then shifting the instruction code
“32h” followed by a 24-bit address (A23-A0) and at least one data byte, into the IO pins. The CS# pin must be
held low for the entire length of the instruction while data is being sent to the device. All other functions of
Quad Page Program are identical to standard Page Program. The Quad Page Program instruction sequence
is shown in
CLK
CLK
IO3
CS#
IO3
CS#
IO0
IO2
IO0
IO2
IO1
IO1
= MSB
Mode 3
Mode 0
Figure 6.23, Quad Page Program Instruction Sequence Diagram on page
D a t a
5
6
7
40
Byte 5
4
1
2
3
0
41 42 43
0
5
6
7
4
Byte 6
Figure 6.23 Quad Page Program Instruction Sequence Diagram
S h e e t
1
1
2
3
0
Instruction (32h)
2
5
6
7
Byte 7
44
4
3
2
1
3
0
45 46 47
4
( P r e l i m i n a r y )
5
6
7
Byte 8 Byte 9
4
5
1
2
3
0
S25FL128K
6
5
6
4
7
48 49
7
0
1
2
3
23
8
Byte 10 Byte 11 Byte 12
4
5
6
7
22
50
9
1
2
0
24-Bit Address
3
21
51 52 53
10
5
6
7
4
2
3
1
28 29
0
3
5
6
4
2
7
54 55
1
2
1
3
0
30
0
31 32 33
Byte 253 Byte 254 Byte 255 Byte 256
4
5
6
7
Byte 1
4
5
7
6
0
1
2
3
0
1
3
2
4
5
6
7
Byte 2
4
5
7
6
34 35 36 37 38 39
0
1
2
3
0
1
35.
2
3
5
4
6
7
Byte 3
5
6
7
4
0
2
1
3
0
2
1
3
4
5
6
7
Byte 4
4
5
7
6
1
2
0
3
1
3
0
2
Mode 3
Mode 0
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