Lattice Semiconductor ASC Bridge Board, Руководство пользователя

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ASC Bridge Board
Evaluation Board User Guide
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FPGA-EB-02025-2.0 23
Table D.4. Miscellaneous – ECP5 Versa Development Board and ASC Bridge Board Connections
Bridge Board
Signal Name J2 Pin
X4 Pin J3 Pin
X3 Pin ECP5 Versa Board
Signal Name ECP5 Ball Project Designer
Signal Name
I2C_SDA
1
16 — EXPCON_IO13 B10 SCL
I2C_SCL
1
18 — EXPCON_IO15 E12 SDA
I2C_WRITE_EN
2
32 — EXPCON_IO23 D16 —
PB1 (SW1) 15 — EXPCON_IO12 A9 User Defined
PB2 (SW2) 21 — EXPCON_IO16 B15 User Defined
MANDATORY_RESET 28 — EXPCON_IO20 A16 User Defined
FAN1_PWM — 19 EXPCON_IO40 C7 User Defined
FAN1_TACH — 20 EXPCON_IO45 C6 User Defined
FAN2_PWM — 17 EXPCON_IO42 D8 User Defined
FAN2_TACH — 18 EXPCON_IO43 E8 User Defined
FAN3_PWM — 15 EXPCON_IO44 B8 User Defined
FAN3_TACH — 16 EXPCON_IO41 C8 User Defined
EXPCON_OSC
3
— 29 EXPCON_OSC — —
EXPCON_CLKIN — 31 EXPCON_CLKIN A10 —
EXPCON_CLKOUT — 33 EXPCON_CLKOUT E11 —
HPE_RESOUT# 1 HPE_RESOUT# A8 —
EXPCON_IO0 3 EXPCON_IO0 A12 User Defined
EXPCON_IO2 5 EXPCON_IO2 B13 User Defined
EXPCON_IO14 17 — EXPCON_IO14 D12 User Defined
EXPCON_IO17 23 — EXPCON_IO17 C15 User Defined
CARDSEL# 38 — CARDSEL# A7 User Defined
Notes:
SDA and SCL signal mapping shown are for SW3 (I
2
C Select) in the MachXO3 position.
If I2C_WRITE_EN is not used, remove R4 on the ASC Breakout Boards to isolate their GPIO1 (LED1) signals; the I2C_WRITE_EN
signal is bussed to all three ASC connectors on the ASC Bridge board.
ispCLOCK5406D BANK_2P (U13 pin 27).