Ssram chip (u74), Ssram chip (u74) –6, Table 2–5 – Altera Nios Development Board Stratix II Edition User Manual
Page 16
2–6
Reference Manual
Altera Corporation
Nios Development Board Stratix II Edition
May 2007
Board Components
SSRAM Chip
(U74)
U74 is a 32-bit, 2 MByte Cypress SSRAM chip. The part number is
CY7C1380C-167AC or CY7C1380D-167AXC. The chip is rated for
synchronous accesses up to 167 MHz. U74 connects to the FPGA so it can
be used by a Nios II embedded processor as general-purpose memory.
The factory-programmed Nios II reference design identifies the SSRAM
devices in its address space as a contiguous 2 MByte, 32-bit word,
zero-wait-state main memory.
Table 2–5. Dual Seven-Segment Display
FPGA Pin
U8 & U9 Pin
Pin Function
Board Net Name
U8
L8
10
a
hex_0A
L9
9
b
hex_0B
M7
8
c
hex_0C
M8
5
d
hex_0D
M5
4
e
hex_0E
M6
2
f
hex_0F
N4
3
g
hex_0G
N5
7
dp
hex_0DP
U9
K8
10
a
hex_1A
K9
9
b
hex_1B
L4
8
c
hex_1C
L5
5
d
hex_1D
M3
4
e
hex_1E
M4
2
f
hex_1F
L6
3
g
hex_1G
L7
7
dp
hex_1DP