EP1C3 ALTERA [Altera Corporation], EP1C3 Datasheet - Page 27

• Manufacturer Part Number: EP1C3
• Description: Cyclone FPGA Family
• Manufacturer: ALTERA [Altera Corporation]

Preliminary Information
Altera Corporation
4K
2K
1K
512
256
128
512
256
128
4K
2K
1K
512
256
512
256
Table 6. M4K RAM Block Configurations (Simple Dual-Port)
Table 7. M4K RAM Block Configurations (True Dual-Port)
Read Port
1
2
4
1
2
4
8
16
32
9
18
36
8
16
9
18
Port A
4K
v
v
v
v
v
v
1
4K
Memory Configuration Sizes
The memory address depths and output widths can be configured as
4,096 1, 2,048 2, 1,024 4, 512 8 (or 512 9 bits), 256 16 (or 256
bits), and 128 x 32 (or 128 x 36 bits). The 128 x 32- or 36-bit configuration
is not available in the true dual-port mode. Mixed-width configurations
are also possible, allowing different read and write widths.
summarize the possible M4K RAM block configurations.
When the M4K RAM block is configured as a shift register block, the
designer can create a shift register up to 4,608 bits (w
2K
v
v
v
v
v
v
v
v
v
v
v
1
2
2K
1K
v
v
v
v
v
v
v
v
v
v
v
2
4
512 8 256 16 128 32 512 9 256 18 128 36
1K
v
v
v
v
v
v
v
v
v
v
v
4
Write Port
v
v
v
v
v
v
512 8
Port B
v
v
v
v
v
v
v
v
v
v
v
Cyclone FPGA Family Data Sheet
256 16
v
v
v
v
v
v
v
v
512 9
m n).
v
v
v
v
v
Tables 6
256 18
v
v
and
v
v
v
18
27
7