M-Link CSR v1.0

Standard set of board identification, status and control registers used with M-Link (PCI-Express or Ethernet) interface.

• SDB Device ID

  • 0x41a37c29 dig_csr variant
  • 0x50b1d9c7 mlink_csr, tadc_csr variant

Register Map

address space 0x00 - 0x1F

Registers are 16 bit wide. 32-bit and 64-bit data is packed as following:

Mandatory registers

Reg 0x00, 16 bit, CTRL, R/W

• [0] - softclear (clear statistics)

• [11:1] - board specific

• [12] - disable 0xFEFE address decode

• [14:13] - board specific

• [15] - board specific (run enable)

Reg 0x02, 16 bit, DEVICE_ID, RO

• [15:8] - Device ID

• [7:0] - reserved

Reg 0x10~0x13, 1-Wire ID, 64 bits, RO

Reg 0x14 - 1-Wire Temperature, RO

Reg 0x15 - PCB Version, RO

• [15:8] - major version
• [7:0] - minor version

Reg 0x16, F/W Version, RO

• [15:8] major version number (binary)
• [7:0] minor version number (binary)

Reg 0x17, F/W Revision, RO

• [15:0] firmware revision number (binary)

Reg 0x1C~0x1F - Uptime, milliseconds, 64 bits, RO

mlink_csr, tadc_csr variant

Reg 0x00 - Control, R/W

• [0] - softclear
• [1] - counters lock - move from here !!!
• [15:2] - reserved

Reg 0x03 - [deprecated]] Live Magic, R/W

Reg 0x08~0x09 - Live Magic, 32 bits, R/W

dig_csr variant

Reg 0x00 - Control (RCTRL), R/W

• [0] - softclear
• [1] - counters lock
• [2] - stream reset

• [14:3] - reserved

• [15] - run

Reg 0x01 - RLAT, R/W

Reg 0x02 - Device ID, status, RO

• [15:8] - Device ID
• [7:0] - status

Reg 0x03 - RTRIG, R/W

Reg 0x04 - ADC Info, R/O

Reg 0x06 - [deprecated] Serial ID MSB, RO

Reg 0x08 - Live Magic, R/W

Reg 0x0A - ADC channel memory depth, in kilosamples, RO

Reg 0x0B - [deprecated] 1-Wire Temperature, RO

Reg 0x0C - [deprecated] F/W Version, RO

Reg 0x0D - [deprecated] F/W Revision, RO

Reg 0x0E - [deprecated] Serial ID LSB, RO

Reg 0x0F - status_0f, RO

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Temperature sensor reading (DS18B20)

Value in degrees Celsius is calculated by the code:

    int rawTemp = regRead(REG_TEMPERATURE) & 0xFFF;
    if (rawTemp & 0x800) rawTemp = -(rawTemp&0x7FF);
    double temp = 0.0625 * rawTemp;

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CSR MLink CSR MLinkRegisters SDB FPGA_Core