DK-DEV-5SGXEA7/ES Altera, DK-DEV-5SGXEA7/ES Datasheet - Page 103

• Manufacturer Part Number: DK-DEV-5SGXEA7/ES
• Description: KIT DEV STRATIX V FPGA 5SGXEA7
• Manufacturer: Altera
• Series: Stratix® Vr
• Type: FPGAr

Specifications of DK-DEV-5SGXEA7/ES

• Contents: Board
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: Stratix® V 5SGXEA7
• Other names: 544-2725

Chapter 2: Memory Blocks in Stratix V Devices
Memory Modes
May 2011 Altera Corporation
Single-Port RAM
1
If you use the memory blocks in ROM, single-port, simple dual-port, or true dual-port
mode, you can corrupt the memory contents if you violate the setup or hold-time on
any of the memory block input registers. This applies to both read and write
operations.
All embedded memory blocks support single-port mode. Single-port mode allows
you to do either one-read or one-write operation at a time.
Figure 2–7
Figure 2–7. Single-Port RAM
Note to
(1) You can implement two single-port memory blocks in a single M20K block. For more information, refer to
During a write operation, the RAM output behavior is configurable. If you use the
read-enable signal and perform a write operation with the read enable deactivated,
the RAM outputs retain the values they held during the most recent active read
enable. If you activate read enable during a write operation or if you do not use the
read-enable signal at all, the RAM outputs show the “new data” being written.
Table 2–6
single-port mode.
Table 2–6. Port Width Configurations for MLABs and M20K (Single-Port Mode)
Mode Support” on page
Figure
lists the possible port width configurations for embedded memory blocks in
shows the single-port RAM configuration.
2–7:
64 x 10
32 x 16
32 x 18
32 x 20
MLABs
64 x 8
64 x 9
2–5.
(Note 1)
data[]
address[]
wren
byteena[]
addressstall
clockena
rden
aclr
inclock
Port Width Configurations
Stratix V Device Handbook Volume 2: Device Interfaces and Integration
outclock
q[]
512 x 32
512 x 40
16K x 1
2K x 10
1K x 16
1K x 20
8K x 2
4K x 4
4K x 5
2K x 8
M20K
“Packed
2–9