M1AFS250-FGG256I Actel Corporation, M1AFS250-FGG256I Datasheet - Page 66
![no-image](/images/no-image-200.jpg)
M1AFS250-FGG256I
Manufacturer Part Number
M1AFS250-FGG256I
Description
Actel Fusion Family Of Mixed Signal Fpgas
Manufacturer
Actel Corporation
Datasheet
1.M1AFS250-FGG256.pdf
(330 pages)
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Part Number:
M1AFS250-FGG256I
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Device Architecture
Figure 2-38 • Read Waveform (Non-Pipe Mode, 32-bit access)
Figure 2-39 • Read Waveform (Pipe Mode, 32-bit access)
2- 50
DATAWIDTH[1:0]
DATAWIDTH[1:0]
STATUS[1:0]
STATUS[1:0]
ADDR[17:0]
ADDR[17:0]
RD[31:0]
RD[31:0]
BUSY
BUSY
REN
CLK
REN
CLK
Read Operation
Read operations are designed to read data from the FB Array, Page Buffer, Block Buffer, or status
registers. Read operations support a normal read and a read-ahead mode (done by asserting
READNEXT). Also, the timing for Read operations is dependent on the setting of PIPE.
The following diagrams illustrate representative timing for Non-Pipe Mode
(Figure
2-39) reads of the flash memory block interface.
A0
A0
0
0
0
0
A1
A1
D0
S0
R e visio n 1
D1
S1
S0
D0
A2
S2
D2
S1
D1
A2
A3
S3
D3
S2
D2
A3
S3
D3
0
0
(Figure
0
0
A4
A4
2-38) and Pipe Mode
D4
X
S4
D4
S4
0
0
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