XC3S400AN-4FTG256I Xilinx Inc, XC3S400AN-4FTG256I Datasheet - Page 90

• 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

Appendix A: Optional Power-of-2 Addressing Mode
Table A-5: Block Addressing, Power-of-2 Addressing Mode
Table A-6: Sector Addressing, Power-of-2 Addressing Mode
90
XC3S1400AN
XC3S200AN
XC3S400AN
XC3S700AN
XC3S50AN
Binary Address
FPGA / Sector
Binary Address
XC3S1400AN
XC3S200AN
XC3S400AN
XC3S700AN
XC3S50AN
Power-of-2 Block Addressing
Power-of-2 Sector Addressing
FPGA
Sector 0a
Sector 0b
Sectors 1– 3
Sector 0a
Sector 0b
Sectors 1– 7
Sector 0a
Sector 0b
Sectors 1– 15
Sector 0a
Sector 0b
Sectors 1– 15
Sector
Sector
Sector
Sector
Table A-5
Table A-6
subdivided into two subsectors, designated as Sector 0a and Sector 0b. These subsectors
require additional address bits.
23
0
0
0
0
0
0
23
0
0
0
0
0
22
0
0
0
0
0
0
22
0
0
0
0
0
summarizes how block addresses are mapped into the 24-bit address field.
shows the sector addressing for the Power-of-2 addressing mode. Sector 0 is
High Address
High Address
21
0
0
0
0
0
0
21
0
0
0
0
0
20
0
0
0
0
20
0
0
0
0
19
Sector
0
0
0
19
0
0
0
0
Block (512 blocks)
18
Sector
0
18
0
0
0
0
Sector
Block (512 blocks)
www.xilinx.com
17
0
17
0
0
0
0
Block (256 blocks)
Block (256 blocks)
16
16
X X X X X X X X X X X X X X X X X
0
0
0
0
Sector
Block (64 blocks)
15
15
X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X
0
0
0
0
14
14
X X X X X X X X X X X X X X X
0
0
0
0
Middle Address
Middle Address
13
13
0
0
0
0
12
12
0
0
0
0
1
11
X X X X X X X X X X X X
11
X X X X X X X X X X X X
X X X X X X X X X X X X
0
1
0
1
0
1
Spartan-3AN In-System Flash User Guide
10
X X X X X X X X X X X
X X X X X X X X X X X
X X X X X X X X X X X
X X X X X X X X X X X
10
X X X X X X X X X X X
X X X X X X X X X X X
X X X X X X X X X X X
X X X X X X X X X X X
Don’t Care bits
Don’t Care bits
Don’t Care bits
9
9
Don’t Care bits
8
8
UG333 (v2.1) January 15, 2009
7
7
6
6
Low Address
Low Address
5
5
4
4
3
3
2
2
1
1
0
0
R