Emerson IPMC7616E PCI Arbitration Assignments on Host Boards, MVME5100, MVME5500, Programming

Chapter 3 Programming

The IDSEL assignments for both modules are shown below:

Table 3-3. IDSEL and IDSELB Mapping for PCI Devices

Device Number
Field	PCI Address Line	IDSEL Connection
0b0_1011	AD11	PCI/ISA Bridge
0b1_0000	AD16	PMC Slot 1 SCSI Device
0b1_0001	AD17	PMC Slot 1 MVME5500
0b1_0101	AD21	PMC Slot 1 MVME6100

The following table shows the Vendor ID, the Device ID, and Revision ID for each of the planar PCI devices on the IPMC712 and IPMC761:

Table 3-4. On-Board PCI Device Identification

Device	Device	Vendor ID	Device ID	Revision ID
SCSI Controller	LSI SYM53C895A	0x1000h	0x0012h	0x00h
PCI-ISA Bridge	W83C554F	0x10ADh	0x0565h	XXh

PCI Arbitration Assignments on Host Boards

The IPMC module PCI arbitration is provided by the host board.

MVME5100

The MVME5100 PCI arbitration is performed by the Hawk ASIC on the host board which supports eight external PCI masters. Included is the Hawk itself and seven external PCI masters. The arbitration assignments for the IPMC712 and IPMC761, when installed on the MVME5100, are as follows:

Table 3-5. PCI Arbitration Assignments

PCI Bus Request	PCI Master(s)
Request 1 (PARBI1)	PMC Slot 1 (SCSI device on the module in PMC Slot 1)
Request 2 (PARBI2)	PIB device on the module in PMC Slot 1

MVME5500

The MVME5500 IPMC module PCI arbitration is performed using logic implemented in Programmable Logic Devices (PLDs). These arbiters use a rotating priority scheme for fairness and bus parking and will always be on the GT-64260B. There are no software programmable modes to these arbiters.

18IPMC7126E/7616E I/O Module Installation and Use (6806800A45B)