
2–42
Chapter 2: Board Components
Memory
Cyclone III LS FPGA Development Board Reference Manual
© October 2009 Altera
Corporation
Table 2–42
lists the flash pin assignments, signal names, and functions. The signal
names and types are relative to the Cyclone III LS device in terms of I/O setting and
direction.
Table 2–42.
Flash Pin Assignments, Schematic Signal Names, and Functions (Part 1 of 2)
Board Reference
Description
Schematic Signal Name
I/O Standard
Cyclone III LS
Device
Pin Number
U9.F6
Address valid
FLASH_ADVn
2.5-V
AF18
U9.B4
Chip enable
FLASH_CEn
AH22
U9.E6
Clock
FLASH_CLK
AH6
U9.F8
Output enable
FLASH_OEn
AD7
U9.F7
Ready
FLASH_RDYBSYn
V4
U9.D4
Reset
FLASH_RESETn
AH5
U9.G8
Write enable
FLASH_WEn
AH17
U9.C6
Address valid
FLASH_WPn
—
U9.A1
Address bus
FSM_A1
AD14
U9.B1
Address bus
FSM_A2
AA17
U9.C1
Address bus
FSM_A3
AE12
U9.D1
Address bus
FSM_A4
AF21
U9.D2
Address bus
FSM_A5
AH2
U9.A2
Address bus
FSM_A6
AB12
U9.C2
Address bus
FSM_A7
AG24
U9.A3
Address bus
FSM_A8
AE25
U9.B3
Address bus
FSM_A9
AH21
U9.C3
Address bus
FSM_A10
AD25
U9.D3
Address bus
FSM_A11
AC9
U9.C4
Address bus
FSM_A12
AF4
U9.A5
Address bus
FSM_A13
AE10
U9.B5
Address bus
FSM_A14
AH26
U9.C5
Address bus
FSM_A15
AG22
U9.D7
Address bus
FSM_A16
AF12
U9.D8
Address bus
FSM_A17
AE19
U9.A7
Address bus
FSM_A18
AA9
U9.B7
Address bus
FSM_A19
AE6
U9.C7
Address bus
FSM_A20
AG18
U9.C8
Address bus
FSM_A21
AE11
U9.A8
Address bus
FSM_A22
AB16
U9.G1
Address bus
FSM_A23
AE13
U9.H8
Address bus
FSM_A24
AG11
U9.B6
Address bus (die select)
FSM_A25
AE9
U9.F2
Data bus
FSM_D0
AH9
U9.E2
Data bus
FSM_D1
AH24