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S25FL256SDPNFAQ Datasheet(PDF) 100 Page - Cypress Semiconductor

No. de pieza S25FL256SDPNFAQ
Descripción Electrónicos  128 Mbit (16 Mbyte)/256 Mbit (32 Mbyte) 128 Mbit (16 Mbyte)/256 Mbit (32 Mbyte)
PDF  149 Pages
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Fabricante Electrónico  CYPRESS [Cypress Semiconductor]
Página de inicio  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

S25FL256SDPNFAQ Datasheet(HTML) 100 Page - Cypress Semiconductor

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Document Number: 001-98283 Rev. *M
Page 99 of 148
S25FL128S/S25FL256S
Although the data learning pattern (DLP) is programmable, the following example shows example of the DLP of 34h. The DLP 34h
(or 00110100) will be driven on each of the active outputs (i.e. all four SIOs on a x4 device, both SIOs on a x2 device and the single
SO output on a x1 device). This pattern was chosen to cover both DC and AC data transition scenarios. The two DC transition
scenarios include data low for a long period of time (two half clocks) followed by a high going transition (001) and the complementary
low going transition (110). The two AC transition scenarios include data low for a short period of time (one half clock) followed by a
high going transition (101) and the complementary low going transition (010). The DC transitions will typically occur with a starting
point closer to the supply rail than the AC transitions that may not have fully settled to their steady state (DC) levels. In many cases
the DC transitions will bound the beginning of the data valid period and the AC transitions will bound the ending of the data valid
period. These transitions will allow the host controller to identify the beginning and ending of the valid data eye. Once the data eye
has been characterized the optimal data capture point can be chosen. See Section 7.5.12 SPI DDR Data Learning Registers
on page 56 for more details.
Figure 9.30 DDR Quad I/O Read Initial Access (3-byte Address, EDh [ExtAdd=0], HPLC=11b)
Figure 9.31 Continuous DDR Quad I/O Read Subsequent Access (3-byte Address,HPLC=11b)
Figure 9.32 DDR Quad I/O Read Initial Access (4-byte Address, EEh or EDh [ExtAdd=1], EHPLC=01b)
Note:
1. Example DLP of 34h (or 00110100).
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Instruction
Address
Mode
High-Z Bus Turn-around
Data 0
Data 1
8 cycles
3 cycles
1 cycle
3 cycle Dummy
1 cycle per data
7
6
5
4
3
2
1
0
20
16
12
8
4
0
4
0
4
0
4
0
21
17
13
9
5
1
5
1
5
1
5
1
22
18
14
10
6
2
6
2
6
2
6
2
23
19
15
11
7
3
7
3
7
3
7
3
CS#
SCK
IO0
IO1
IO2
IO3
0
1
2
3
4
5
6
7
8
Address
Mode
High-Z Bus Turn-around
Data 0
Data 1
3 cy cle
1 cy cle
3 cy cle Dummy
1 cy cle per data
20
16
12
8
4
0
4
0
4
0
4
0
21
17
13
9
5
1
5
1
5
1
5
1
22
18
14
10
6
2
6
2
6
2
6
2
23
19
15
11
7
3
7
3
7
3
7
3
CS#
SCK
IO0
IO1
IO2
IO3
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Instruction
32 Bit Address
Mode
High-Z Bus Turn-around
Optional Data Learning Pattern
Data 0
Data 1
8 cycles
4 cycles
1 cycle
7 cycle Dummy
1 cycle per data
7
6
5
4
3
2
1
0
28
24
20
16
12
8
4
0
4
0
7
6
5
4
3
2
1
0
4
0
4
0
29
25
21
17
13
9
5
1
5
1
7
6
5
4
3
2
1
0
5
1
5
1
30
26
22
18
14
10
6
2
6
2
7
6
5
4
3
2
1
0
6
2
6
2
31
27
23
19
15
11
7
3
7
3
7
6
5
4
3
2
1
0
7
3
7
3
CS#
SCK
IO0
IO1
IO2
IO3



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