Emerson PMT1, PME1 PMC/PCI Interface, PCI9060ES Register MAP, PCI Configuration Registers, Size

Section 7

PMC/PCI Interface

The PmT1 and PmE1 module design complies with the Peripheral Component Interconnect (PCI) bus interface standard and with the associated PCI Mezzanine Card (PMC) mechanical interface standard. The PmT1 and PmE1 modules must be attached to and controlled by a PMC/PCI-compliant baseboard.

The PmT1 and PmE1 use the PLX Technology PCI9060ES interface controller to implement the +5V PMC/PCI interface. The PMC/PCI interface features:

•Asynchronous operation between the local and PCI buses operating at up to 33.33 MHz

•Bi-directional bus locking

•Doorbell interrupts

•EEPROM power-on initialization

PCI9060ES REGISTER MAP

The PCI9060ES is controlled through registers that are accessible by the MPC860P and the baseboard on which the PmT1 and PmE1 is mounted. The registers fall into four groups: PCI Configuration registers, Local Configuration registers, Shared Runtime regis- ters, and Local DMA registers. The local base address of these registers is C100,000016. The PCI base address of these registers is programmable.

The PCI9060ES registers are readable and writable in byte, word, or long-word accesses, unless noted otherwise. See page 7-3for a description of the Emerson-specific initialization of these registers. For details on the bit fields and functionality of these registers refer to the PCI9060ES data sheet.

PCI Configuration Registers

The PCI Configuration registers are also known as the “configuration header”. The configu- ration header is accessed via configuration space. The registers map baseboard local mem- ory, the Local Configuration, and Shared Runtime registers into the PCI memory map.

Table 7-1:PCI Configuration Registers

Local Bus	PCI Offset
Address (hex):	Address (hex):	Size:	Register Name:
C100,0000	00	Word	PCI Vendor ID register
C100,0002	02	Word	PCI Device ID register
C100,0004	04	Word	PCI Command register
C100,0006	06	Word	PCI Status register
C100,0008	08	Byte	PCI Revision ID register
C100,0009	09	3 Bytes	PCI Class Code register

10002367-02 PmT1 and PmE1 User’s Manual

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