XC3S400AN-4FTG256I Xilinx Inc, XC3S400AN-4FTG256I Datasheet - Page 63

• 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

Status and Information Commands
Status Register
Table 6-1: Status Register Contents
Spartan-3AN FPGA In-System Flash User Guide
UG333 (v2.1) January 15, 2009
Description
Name
Bit
0 = Busy
1 = Ready
READY/
BUSY
R
7
The Spartan
using two different commands.
•
•
As shown in
•
•
•
•
•
0 = Matches
1 = Different
COMPARE
The
ISF memory.
The
whether the ISF memory is ready to receive additional commands or is busy
completing the current command
the result of a
the size of the ISF memory array
whether
the current addressing mode, and consequently the size of each memory page
6
Status Register
Information Read
®
Sector Protection
Table
-3AN FPGA In-System Flash (ISF) memory provides status and information
0011 = 1 Mbit: XC3S50AN
0111 = 4 Mbit: XC3S200AN or XC3S400AN
1001 = 8 Mbit: XC3S700AN
1011 = 16 Mbit: XC3S1400AN
Page to Buffer Compare (Program Verify)
6-1, the Status Register describes…
5
provides status about the current state and configuration of the
www.xilinx.com
provide JEDEC-compatible device information.
ISF Memory Size
is presently enabled or not
4
3
2
0 = Open
1 = Protected
command
PROTECT
SECTOR
1
Chapter 6
0 = Extended
(Default)
1 = Power-of-2
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