XC3S400AN-4FTG256I Xilinx Inc, XC3S400AN-4FTG256I Datasheet - Page 43

• Manufacturer Part Number: XC3S400AN-4FTG256I
• Description: IC FPGA SPARTAN-3AN 256FTBGA
• Manufacturer: Xilinx Inc
• Series: Spartan™-3ANr

Specifications of XC3S400AN-4FTG256I

• Number Of Logic Elements/cells: 8064
• Number Of Labs/clbs: 896
• Total Ram Bits: 368640
• Number Of I /o: 195
• Number Of Gates: 400000
• Voltage - Supply: 1.14 V ~ 1.26 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 256-LBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 4-3: Buffer to Page Program Command Summary
Spartan-3AN FPGA In-System Flash User Guide
UG333 (v2.1) January 15, 2009
Notes:
1. The Buffer 2 commands are not available in the XC3S50AN because it has only one SRAM page buffer.
2. The Buffer to Page Program command is supported in simulation.
MOSI
Pin
Buffer 2 to Page Program without Erase
Buffer 1 to Page Program without Erase
Buffer 2 to Page Program with Erase
R
Buffer 1 to Page Program with Erase
•
•
The CSB signal must remain Low throughout the entire data transfer.
A Low-to-High transition on the CSB input completes the command.
•
Table 4-4: Page Erase and Programming Time, T
Command
Symbol
Byte 1
0x83
0x86
0x88
0x89
T
Similarly, serially clock in a 24-bit page address.
♦
♦
To end the data transfer, drive CSB High on the falling edge of CLK.
If using the command with page erase…
♦
♦
♦
PEP
If using the default address scheme, see
If using power-of-2 addressing, see
the ISF memory first erases the selected memory page
then programs the page with the data stored in the designated SRAM page buffer.
The operation is internally self-timed and completes in the Page Erase and
Programming time, T
FPGA data
Page Erase and Programming Time
sheet.
(1)
(1)
Description
www.xilinx.com
Default Addressing:
See
Power-of-2 Addressing:
See
PEP
High Address
Table 5-3, page 53
Table A-4, page 89
, shown in
Byte 2
Page Address in Buffer
Buffer to Page Program without Built-in Erase
Table 4-4
Table A-4, page
24-bit Page Address
Table 2-2, page 19
Middle Address
XC3S1400AN
XC3S200AN
XC3S400AN
XC3S700AN
XC3S50AN
PEP
and specified in the
FPGA
Byte 3
89.
or
Typ
14
17
Byte Address Unused
Table 5-3, page
Low Address
Don’t Care
Spartan-3AN
Max
Byte 4
35
40
XX
Units
53.
ms
ms
43