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Hilscher PCI Vendor and Device IDs (PCI/PCIe Information)

Attention: The SUBSYSTEM_ID is used to determine if the hardware is a RAM based or FLASH based hardware

  • RAM based
    Firmware and configuration is not stored on the hardware
  • FLASH based
    Firmware and configuration is stored on the hardware.  Depending on the functionality the start-up behaviour of the hardware is different!


CIFX50 / CIFX70 / CIFX90 etc.
PCI IdentifierValueDescription
VENDOR_ID0x15CFHilscher GmbH


PCI Identifier


RAM based


FLASH based

VENDOR_ID0x15CF0x15CFHilscher GmbH
SUBVENDOR_ID0x15CF0x15CFHilscher GmbH
SUBSYSTEM_ID0x00000x0001RAM/FLASH based
PCI IdentifierValue
RAM based
FLASH based
VENDOR_ID0x15CF0x15CFHilscher GmbH
SUBVENDOR_ID0x15CF0x15CFHilscher GmbH
SUBSYSTEM_ID0x00000x0001RAM/FLASH based
CIFX PCI-Register Information
PCI Register Information
Base Address RegisterDefinitionDescription


MRAM area (if suporrted by hardware)
BAR 2I/O_BASE_ADDRESSunused (special netX feature)
BAR 30unused
BAR 40unused
BAR 50unused
Calculating the DPM size from BAR register

The size of the DPM can be calculated form the BASE ADDRESS REGISTER (BAR). This is a "standard" functionality from PCI and described in the PCI specification.

  • save the current BAR content (this is the physical memory address)
  • fill all bits of the BAR register with "1" (0xFFFFFFFF)
  • read the BAR content back (Memory Information value)
  • restore the BAR with the previous saved original value (physical memory address)
  • compute the size from the "Memory Information" value
  • This is done by masking out the lowest 4 bit for a memory BAR (2 bit for a I/O BAR) and building the two's complement of the value (invert the value and add 1).
    The resulting value is the memory size in bytes.

  if (val & 1)

    size = (~val | 0x3) + 1;          /* I/O space */


    size = (~val | 0xF) + 1;          /* memory space */


PCI Interrupt Enable

Interrupt enable is only possible via the so called netX Global-Register Block located at the end of the netX DPM (Dual Ported Memory last 512 Byte = 0x200).

All definitions for the netX "Global-Register Block can be found in the file: NetX_RegDefs.h

This file is inculded in the cifX/netX Toolkit sources.


Information from NetX_RegDefs.h

#define NETX_DPM_MEMORY_SIZE 0x10000

/* DPMHS_INT_EN0 Bits [31:29] */
#define MSK_IRQ_EN0_INT_REQ       0x80000000  /*!< Global Interrupt bitmask */
#define SRT_IRQ_EN0_INT_REQ       31          /*!< Shift right term for global interrupt */

/* DPMHS_INT_EN0 Bits [15:0] */
#define MSK_IRQ_EN0_HANDSHAKE     0x0000FFFF  /*!< Handshake interrupt mask (Each bit = 1 cell) */
#define SRT_IRQ_EN0_HANDSHAKE     0           /*!< Shift right term for handshake interrupt */

/*! netX Host Register Block, always located at Offset DPMSize - 0x200       */

typedef struct NETX_GLOBAL_REG_BLOCKtag

  /* 0xFE00, start of the DMA channel data (8Channels * 8DWords * 4Bytes/DWord = 0x100 Bytes) */
  NETX_DMA_CHANNEL_CONFIG atDmaCtrl[NETX_MAX_DMA_CHANNELS]; /*!< Configuration Register for all 8 DMA Channels */
  /* 0xFF00, start of the netX Host control block */
    volatile uint32_t reserved[47];                      /*!< unused/reserved */

  /* 0xFFBC, start of the defined registers */
  volatile uint32_t ulPCIBaseAddress;                  /*!< PCI Base address of 2nd Memory Window        */
  volatile uint32_t ulWatchDogTimeoutHost;             /*!< Host Watchdog Timeout value                  */
  volatile uint32_t ulWatchDogTrigger;                 /*!< Host Watchdog triggering cell                */
  volatile uint32_t ulWatchDogTimeoutNetx;             /*!< NetX Watchdog Timeout value                  */
  volatile uint32_t reserved2;                         /*!< unused/reserved                              */
  volatile uint32_t ulCyclicTimerControl;              /*!< Control of cyclic timer (repeat/single,
                                                            timer resolution, up/down)                   */
  volatile uint32_t ulCyclicTimerStart;                /*!< Timer start value                            */
  volatile uint32_t ulSystemState;                     /*!< System state register                        */
  volatile uint32_t ulHostReset;                       /*!< Host reset for initiating a hard reset of
                                                                 the netX chip                           */
  volatile uint32_t ulIRQState_0;                      /*!< IRQ State 0                                  */
  volatile uint32_t ulIRQState_1;                      /*!< IRQ State 1                                  */
  volatile uint32_t reserved3;                         /*!< unused/reserved                              */
  volatile uint32_t reserved4;                         /*!< unused/reserved                              */
  volatile uint32_t ulIRQEnable_0;                     /*!< IRQ enable register 0                        */
  volatile uint32_t ulIRQEnable_1;                     /*!< IRQ enable register 1                        */
  volatile uint32_t reserved5;                         /*!< unused/reserved                              */
  volatile uint32_t reserved6;                         /*!< unused/reserved                              */


Example from the cifX/netX Toolkit

/*! Physically Enable Interrupts on hardware
*   \param ptDevInstance Device instance                                     */
void cifXTKitEnableHWInterrupt(PDEVICEINSTANCE ptDevInstance)
  /* Set interrupt enable bits in PCI mode only if the complete 64KByte DPM is available */
  if( (ptDevInstance->fPCICard) ||
      (ptDevInstance->ulDPMSize >= NETX_DPM_MEMORY_SIZE) )
    /* Enable global and handshake interrupts */
    HWIF_WRITE32(ptDevInstance, ptDevInstance->ptGlobalRegisters->ulIRQEnable_0,
                 HOST_TO_LE32((MSK_IRQ_EN0_INT_REQ | MSK_IRQ_EN0_HANDSHAKE) ));
    HWIF_WRITE32(ptDevInstance, ptDevInstance->ptGlobalRegisters->ulIRQEnable_1, 0);

/*! Physically Disable Interrupts on hardware
*   \param ptDevInstance Device instance                                     */
void cifXTKitDisableHWInterrupt(PDEVICEINSTANCE ptDevInstance)
  /* Clear interrupt enable bits in PCI mode or if the complete 64Kb DPM is available */
  if( (ptDevInstance->fPCICard) ||
      (ptDevInstance->ulDPMSize == NETX_DPM_MEMORY_SIZE) )
    /* Disable all interrupts */
    HWIF_WRITE32(ptDevInstance, ptDevInstance->ptGlobalRegisters->ulIRQEnable_0, 0);
    HWIF_WRITE32(ptDevInstance, ptDevInstance->ptGlobalRegisters->ulIRQEnable_1, 0);