View source for Terasic DE1

The Terasic DE1 is an Altera FPGA development board.

= Pin Mapping =

== Switches ==
{| class="wikitable sortable" border="1"
|+ Switches
!Function
!FPGA Pin
|-
|Toggle 0
|PIN_L22
|-
|Toggle 1
|PIN_L21
|-
|Toggle 2
|PIN_M22
|-
|Toggle 3
|PIN_V12
|-
|Toggle 4
|PIN_W12
|-
|Toggle 5
|PIN_U12
|-
|Toggle 6
|PIN_U11
|-
|Toggle 7
|PIN_M2
|-
|Toggle 8
|PIN_M1
|-
|Toggle 9
|PIN_L2
|-
|Pushbutton 0
|PIN_R22
|-
|Pushbutton 1
|PIN_R21
|-
|Pushbutton 2
|PIN_T22
|-
|Pushbutton 3
|PIN_T21
|-
|}

== LEDs ==
{| class="wikitable sortable" border="1"
|+ LEDs
|LED Red 0
|PIN_R20
|-
|LED Red 1
|PIN_R19
|-
|LED Red 2
|PIN_U19
|-
|LED Red 3
|PIN_Y19
|-
|LED Red 4
|PIN_T18
|-
|LED Red 5
|PIN_V19
|-
|LED Red 6
|PIN_Y18
|-
|LED Red 7
|PIN_U18
|-
|LED Red 8
|PIN_R18
|-
|LED Red 9
|PIN_R17
|-
|LED Green 0
|PIN_U22
|-
|LED Green 1
|PIN_U21
|-
|LED Green 2
|PIN_V22
|-
|LED Green 3
|PIN_V21
|-
|LED Green 4
|PIN_W22
|-
|LED Green 5
|PIN_W21
|-
|LED Green 6
|PIN_Y22
|-
|LED Green 7
|PIN_Y21
|-
|}

== 7-segment Displays ==
{| class="wikitable sortable" border="1"
|+ 7-segment Displays
|Seven Segment Digit 0 Segment 0
|PIN_J2
|-
|Seven Segment Digit 0 Segment 1
|PIN_J1
|-
|Seven Segment Digit 0 Segment 2
|PIN_H2
|-
|Seven Segment Digit 0 Segment 3
|PIN_H1
|-
|Seven Segment Digit 0 Segment 4
|PIN_F2
|-
|Seven Segment Digit 0 Segment 5
|PIN_F1
|-
|Seven Segment Digit 0 Segment 6
|PIN_E2
|-
|Seven Segment Digit 1 Segment 0
|PIN_E1
|-
|Seven Segment Digit 1 Segment 1
|PIN_H6
|-
|Seven Segment Digit 1 Segment 2
|PIN_H5
|-
|Seven Segment Digit 1 Segment 3
|PIN_H4
|-
|Seven Segment Digit 1 Segment 4
|PIN_G3
|-
|Seven Segment Digit 1 Segment 5
|PIN_D2
|-
|Seven Segment Digit 1 Segment 6
|PIN_D1
|-
|Seven Segment Digit 2 Segment 0
|PIN_G5
|-
|Seven Segment Digit 2 Segment 1
|PIN_G6
|-
|Seven Segment Digit 2 Segment 2
|PIN_C2
|-
|Seven Segment Digit 2 Segment 3
|PIN_C1
|-
|Seven Segment Digit 2 Segment 4
|PIN_E3
|-
|Seven Segment Digit 2 Segment 5
|PIN_E4
|-
|Seven Segment Digit 2 Segment 6
|PIN_D3
|-
|Seven Segment Digit 3 Segment 0
|PIN_F4
|-
|Seven Segment Digit 3 Segment 1
|PIN_D5
|-
|Seven Segment Digit 3 Segment 2
|PIN_D6
|-
|Seven Segment Digit 3 Segment 3
|PIN_J4
|-
|Seven Segment Digit 3 Segment 4
|PIN_L8
|-
|Seven Segment Digit 3 Segment 5
|PIN_F3
|-
|Seven Segment Digit 3 Segment 6
|PIN_D4
|-
|}

== VGA ==
{| class="wikitable sortable" border="1"
|+ VGA
|VGA Red 0
|PIN_D9
|-
|VGA Red 1
|PIN_C9
|-
|VGA Red 2
|PIN_A7
|-
|VGA Red 3
|PIN_B7
|-
|VGA Green 0
|PIN_B8
|-
|VGA Green 1
|PIN_C10
|-
|VGA Green 2
|PIN_B9
|-
|VGA Green 3
|PIN_A8
|-
|VGA Blue 0
|PIN_A9
|-
|VGA Blue 1
|PIN_D11
|-
|VGA Blue 2
|PIN_A10
|-
|VGA Blue 3
|PIN_B10
|-
|VGA Sync H
|PIN_A11
|-
|VGA Sync V
|PIN_B11
|-
|}

== Audio CODEC ==
{| class="wikitable sortable" border="1"
|+ Audio CODEC
|Audio CODEC ADC LR Clock
|PIN_A6
|-
|Audio CODEC ADC Data
|PIN_B6
|-
|Audio CODEC DAC LR Clock
|PIN_A5
|-
|Audio CODEC DAC LR Clock
|PIN_B5
|-
|Audio CODEC Chip Clock
|PIN_B4
|-
|Audio CODEC Bit-Stream Clock
|PIN_A4
|-
|Audio CODEC I2C Data
|PIN_A3
|-
|Audio CODEC I2C Clock
|PIN_B3
|-
|}

== Clock/Serial Comms ==
{| class="wikitable sortable" border="1"
|+ Clock/Serial Comms
|Clock 24MHz (from USB Blaster)
|PIN_A12, PIN_B12
|-
|Clock 27MHz
|PIN_D12, PIN_E12
|-
|Clock 50MHz
|PIN_L1
|-
|RS232 Receive
|PIN_F14
|-
|RS232 Transmit
|PIN_G12
|-
|PS/2 Clock
|PIN_H15
|-
|PS/2 Data
|PIN_J14
|-
|}

== SDRAM ==
{| class="wikitable sortable" border="1"
|+ SDRAM
|SDRAM Address 0
|PIN_W4
|-
|SDRAM Address 1
|PIN_W5
|-
|SDRAM Address 2
|PIN_Y3
|-
|SDRAM Address 3
|PIN_Y4
|-
|SDRAM Address 4
|PIN_R6
|-
|SDRAM Address 5
|PIN_R5
|-
|SDRAM Address 6
|PIN_P6
|-
|SDRAM Address 7
|PIN_P5
|-
|SDRAM Address 8
|PIN_P3
|-
|SDRAM Address 9
|PIN_N4
|-
|SDRAM Address 10
|PIN_W3
|-
|SDRAM Address 11
|PIN_N6
|-
|SDRAM Data 0
|PIN_U1
|-
|SDRAM Data 1
|PIN_U2
|-
|SDRAM Data 2
|PIN_V1
|-
|SDRAM Data 3
|PIN_V2
|-
|SDRAM Data 4
|PIN_W1
|-
|SDRAM Data 5
|PIN_W2
|-
|SDRAM Data 6
|PIN_Y1
|-
|SDRAM Data 7
|PIN_Y2
|-
|SDRAM Data 8
|PIN_N1
|-
|SDRAM Data 9
|PIN_N2
|-
|SDRAM Data 10
|PIN_P1
|-
|SDRAM Data 11
|PIN_P2
|-
|SDRAM Data 12
|PIN_R1
|-
|SDRAM Data 13
|PIN_R2
|-
|SDRAM Data 14
|PIN_T1
|-
|SDRAM Data 15
|PIN_T2
|-
|SDRAM Bank Address 0
|PIN_U3
|-
|SDRAM Bank Address 1
|PIN_V4
|-
|SDRAM Low-byte Data Mask
|PIN_R7
|-
|SDRAM High-byte Data Mask
|PIN_M5
|-
|SDRAM Row Address Strobe
|PIN_T5
|-
|SDRAM Column Address Strobe
|PIN_T3
|-
|SDRAM Clock Enable
|PIN_N3
|-
|SDRAM Clock
|PIN_U4
|-
|SDRAM Write Enable
|PIN_R8
|-
|SDRAM Chip Select
|PIN_T6
|-
|}

== SRAM ==
{| class="wikitable sortable" border="1"
|+ SRAM
|SRAM Address 0
|PIN_AA3
|-
|SRAM Address 1
|PIN_AB3
|-
|SRAM Address 2
|PIN_AA4
|-
|SRAM Address 3
|PIN_AB4
|-
|SRAM Address 4
|PIN_A5
|-
|SRAM Address 5
|PIN_AB10
|-
|SRAM Address 6
|PIN_AA11
|-
|SRAM Address 7
|PIN_AB11
|-
|SRAM Address 8
|PIN_V11
|-
|SRAM Address 9
|PIN_W11
|-
|SRAM Address 10
|PIN_R11
|-
|SRAM Address 11
|PIN_T11
|-
|SRAM Address 12
|PIN_Y10
|-
|SRAM Address 13
|PIN_U10
|-
|SRAM Address 14
|PIN_R10
|-
|SRAM Address 15
|PIN_T7
|-
|SRAM Address 16
|PIN_Y6
|-
|SRAM Address 17
|PIN_Y5
|-
|SRAM Data 0
|PIN_AA6
|-
|SRAM Data 1
|PIN_AB6
|-
|SRAM Data 2
|PIN_AA7
|-
|SRAM Data 3
|PIN_AB7
|-
|SRAM Data 4
|PIN_AA8
|-
|SRAM Data 5
|PIN_AB8
|-
|SRAM Data 6
|PIN_AA9
|-
|SRAM Data 7
|PIN_AB9
|-
|SRAM Data 8
|PIN_Y9
|-
|SRAM Data 9
|PIN_W9
|-
|SRAM Data 10
|PIN_V9
|-
|SRAM Data 11
|PIN_U9
|-
|SRAM Data 12
|PIN_R9
|-
|SRAM Data 13
|PIN_W8
|-
|SRAM Data 14
|PIN_V8
|-
|SRAM Data 15
|PIN_U8
|-
|SRAM Write Enable
|PIN_AA10
|-
|SRAM Output Enable
|PIN_T8
|-
|SRAM High-byte Data Mask
|PIN_W7
|-
|SRAM Low-byte Data Mask
|PIN_Y7
|-
|SRAM Chip Enable
|PIN_AB5
|-
|}

== Flash ==
{| class="wikitable sortable" border="1"
|+ Flash
|Flash Address 0
|PIN_AB20
|-
|Flash Address 1
|PIN_AA14
|-
|Flash Address 2
|PIN_Y16
|-
|Flash Address 3
|PIN_R15
|-
|Flash Address 4
|PIN_T15
|-
|Flash Address 5
|PIN_U15
|-
|Flash Address 6
|PIN_V15
|-
|Flash Address 7
|PIN_W15
|-
|Flash Address 8
|PIN_R14
|-
|Flash Address 9
|PIN_Y13
|-
|Flash Address 10
|PIN_R12
|-
|Flash Address 11
|PIN_T12
|-
|Flash Address 12
|PIN_AB14
|-
|Flash Address 13
|PIN_AA13
|-
|Flash Address 14
|PIN_AB13
|-
|Flash Address 15
|PIN_AA12
|-
|Flash Address 16
|PIN_AB12
|-
|Flash Address 17
|PIN_AA20
|-
|Flash Address 18
|PIN_U14
|-
|Flash Address 19
|PIN_V14
|-
|Flash Address 20
|PIN_U13
|-
|Flash Address 21
|PIN_R13
|-
|Flash Data 0
|PIN_AB16
|-
|Flash Data 1
|PIN_AA16
|-
|Flash Data 2
|PIN_AB17
|-
|Flash Data 3
|PIN_AA17
|-
|Flash Data 4
|PIN_AB18
|-
|Flash Data 5
|PIN_AA18
|-
|Flash Data 6
|PIN_AB19
|-
|Flash Data 7
|PIN_AA19
|-
|Flash Output Enable
|PIN_AA15
|-
|Flash Reset
|PIN_W14
|-
|Flash Write Enable
|PIN_Y14
|-
|}

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