Altera Multiaxis Motor Control Board - Manual (Page 13)

Functional Description Page 13
Multiaxis Motor Control Board February 2014 Altera Corporation
Quadrature and Hall Effect Encoder Interface
The Multiaxis Motor Control Board allows you to connect two- and three-channel
quadrature encoders with RS485 interfaces.
IP cores in the FPGA on the host board decode the encoder signals.
HSMC Connector
The HSMC connector allows you to connect the Multiaxis Motor Control Board to an
FPGA host board.
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For more information on the HSMC connector, refer to the High Speed Mezzanine Card
(HSMC) Specification .
Table 5 lists the pin assignments for the HSMC connector. I/O direction is relative to
the Multiaxis Motor Control Board: input indicates input to the Multiaxis Motor
Control Board from the host board; output indicates an output signal from the
Multiaxis Motor Control Board to the host board.
Table 5. HSMC Connector Pin Assignments
Pin Signal Direction Function
1 to 38 — — Not used.
39 CLK_HSMC_ADC Input Clock input for sigma-delta ADCs.
40 CLK_HSMC_FEEDBACK Output
Feedback clock compensating for isolator
delays.
41 400V_PFC_PFW Output PFC power fail warning.
42 DRV_0_HSMC_DRV_WH Input Channel 0 phase W high side.
43 400V_PFC_LD_EN Output PFC load enable.
44 DRV_0_HSMC_DRV_VH Input Channel 0 phase V high side.
45 3.3 V — Power.
46 12 V — Power.
47 HSMC_MOTOR_BRAKE Input Brake (chopper) enable.
48 DRV_0_HSMC_DRV_UH Input Channel 0 phase U high side.
49 400V_PFC_PF_EN Input PFC enable.
50 DRV_0_HSMC_W_DATA_OUT Output Channel 0 phase W ADC data.
51 3.3 V — Power.
52 12 V — Power.
53 HSMC_ADC_400V_PFC_I_DATA Output PFC return current ADC data.
54 DRV_0_HSMC_MOTOR_RTN_DATA_OUT Output Channel 0 IGBT return current ADC data.
55 HSMC_ADC_400V_PFC_V_DATA Output PFC voltage ADC data.
56 DRV_0_HSMC_U_DATA_OUT Output Channel 0 phase U ADC data.
57 3.3 V — Power.
58 12 V — Power.
59 DRV_0_HSMC_RS485_TX Input Channel 0 RS485 encoder TX data.
60 DRV_0_HSMC_RSLVR_DRV_HALL_QUAD_A Input/Output Encoder dependent.