PMC/PCI Interface: PCI9060ES Initialization

The serial EEPROM may be reprogrammed to configure the PCI bridge in other ways. Bits (27:24) of the PCI9060ES EEPROM control register (C100,00EC16) are used for reading and writing the EEPROM. Refer to the NS93CS46 data sheet listed in Table 1-5for a description of the EEPROM’s programming instructions, and the PCI9060ES data sheet for the sequence in which the data is stored.

Table 7-4:PCI9060ES PCI Configuration Register Initialization

 

 

Hex Value

 

Local Bus

 

at the

byte-swapped

 

Address (hex):

Register:

PCI9060ES:

at the CPU:

Notes:

C100,00001

PCI Configuration ID

1223

2312

This read-only register contains Emerson’s

C100,00021

 

 

 

vendor ID.

PCI Configuration ID

0004

0400

This read-only register contains the PmT1

C100,00021

 

 

 

device ID.

PCI Configuration ID

0005

0500

This read-only register contains the PmE1

 

 

 

 

device ID.

 

 

 

 

 

C100,00042

PCI Command

0147

4701

Enable I/O and memory space accesses.

 

 

 

 

Enable PCI9060ES to act as a bus master.

C100,00302

 

 

 

Enable parity checking and the SERR* driver.

PCI Expansion ROM

00000000

00000000

Address decode enable and expansion ROM

C100,00081

Base

 

 

base address accesses.

PCI Revision ID

01

01

This read-only register contains the PmT1

C100,00091

 

 

 

and PmE1’s revision number.

PCI Class Code

0B20000

00200B

No interface is defined.

C100,00182

PCI Base Address

xxxxxxxx

xxxxxxxx

PCI-to-local base address is 0000,0000 .

 

(for memory access to

 

 

16

 

 

 

(PCI host sets)

C100,003C1

local address space)

 

 

 

PCI interrupt Line

00

00

—

C100,003D1

PCI Interrupt Pin

01

01

This read-only register indicates that the

C100,003E1

 

 

 

PCI9060ES uses INTA* as its interrupt pin.

PCI Min_Gnt

00

00

This read-only register specifies a burst

C100,003F1

 

 

 

period of 0 μseconds.

PCI Max_Lat

00

00

This read-only register specifies a maximum

 

 

 

 

latency of 0 μseconds.

 

 

 

 

 

1.These registers are initialized by the serial EEPROM.

2.These registers are not initialized by the serial EEPROM.

7-4

PmT1 and PmE1 User’s Manual

10002367-02

Page 65 Page 67
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Emerson PME1, PMT1 user manual 4PCI9060ES PCI Configuration Register Initialization
Page 65 Page 67

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