EP2S180 ALTERA [Altera Corporation], EP2S180 Datasheet - Page 30

• Manufacturer Part Number: EP2S180
• Description: DSP Development Board
• Manufacturer: ALTERA [Altera Corporation]

Board Components
2–22
Stratix II EP2S180 DSP Development Board Reference Manual
SRAM Memory (U43 & U44)
U43 and U44 are two 256 Kbyte x 16-bit asynchronous SRAM devices.
They are connected to the Stratix II device so they can be used by a
Nios
devices can be used in parallel to implement a 32-bit wide memory
subsystem. Refer to
devices U43 and U44.
Note to
(1)
dacB_D1 (MSB)
dacB_D2
dacB_D3
dacB_D4
dacB_D5
dacB_D6
dacB_D7
dacB_D8
dacB_D9
dacB_D10
dacB_D11
dacB_D12
dacB_D13
dacB_D14 (LSB)
SE_A0
SE_A1
SE_A2
SE_A3
SE_A4
Table 2–18. D/A B (U15, J17) Stratix II Pin-Outs
Table 2–19. SRAM Memory (U43 & U44) (Part 1
of 3)
®
The Texas Instruments (TI) naming conventions differ from those of Altera
Corporation. The TI data sheet for the DAC 904 D/A converter lists bit 1 as the
most significant bit (MSB) and bit 14 as the least significant bit (LSB).
II embedded processor as general-purpose memory. The two 16-bit
Signal Name
Table
Pin Name
Core Version a.b.c variable
2–18:
(1)
Table 2–19
for Stratix II device pin-outs for SRAM
Pin Number
AM27
AM28
AK27
AJ27
AD8
Stratix II Pin
AA10
AA11
Y10
Y11
AB5
AB6
AA6
AA7
W4
W5
Y6
Y7
Y8
Y9
Altera Corporation