EP2AGX95EF29I5N Altera, EP2AGX95EF29I5N Datasheet - Page 58

• Manufacturer Part Number: EP2AGX95EF29I5N
• Description: IC ARRIA II GX FPGA 95K 780FBGA
• Manufacturer: Altera
• Series: Arria II GXr

Specifications of EP2AGX95EF29I5N

• Number Of Logic Elements/cells: 89178
• Number Of Labs/clbs: 3747
• Total Ram Bits: 6679
• Number Of I /o: 372
• Voltage - Supply: 0.87 V ~ 0.93 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 780-FBGA
• Family Name: Arria® II GX
• Number Of Logic Blocks/elements: 93674
• # I/os (max): 372
• Frequency (max): 500MHz
• Operating Supply Voltage (typ): 900mV
• Logic Cells: 93674
• Ram Bits: 7025459.2
• Operating Supply Voltage (min): 0.87V
• Operating Supply Voltage (max): 0.93V
• Operating Temp Range: -40C to 100C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 780
• Package Type: FC-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -
• Lead Free Status / Rohs Status: Compliant

3–18
Figure 3–19. Same Port Read-During-Write: Old Data Mode
Figure 3–20. Mixed Port Read During Write: Old Data Mode
Arria II GX Device Handbook, Volume 1
1
q_b_(asyn)
address_b
q_a (asyn)
address_a
address
bytenna
clk_a&b
bytenna
data_a
data_a
wrena
clk_a
rdena
rdenb
wrena
Figure 3–19
behavior in old data mode.
Mixed-Port Read-During-Write Mode
This mode applies to a RAM in simple or true dual-port mode which has one port
reading and the other port writing to the same address location with the same clock.
In this mode, you also have two output choices: old data or don’t care. In old data
mode, a read-during-write operation to different ports causes the RAM outputs to
reflect the old data at that address location. In don’t care mode, the same operation
results in a “don’t care” or “unknown” value on the RAM outputs.
Read-during-write behavior is controlled using the RAM MegaWizard Plug-In
Manager. For more information about how to implement the desired behavior, refer to
the
Figure 3–20
behavior in old data mode. In don’t care mode, the old data shown in
simply replaced with “don’t care”.
RAM Megafunction User
shows sample functional waveforms of same-port read-during-write
shows a sample functional waveform of mixed-port read-during-write
A123
AAAA
01
11
A0 (old data)
A0 (old data)
BBBB
B456
10
01
A0
D
A0
A0
old
Guide.
AAAA
D
old
23
CCCC
C789
00
10
B423
AABB
DDDD
DDDD
A1(old data)
A1(old data)
Chapter 3: Memory Blocks in Arria II GX Devices
A1
EEEE
EEEE
11
11
A1
A1
DDDD
DDDD
© November 2009 Altera Corporation
FFFF
FFFF
EEEE
EEEE
Design Considerations
Figure 3–20
is