1

Board Description and Memory Maps

The register values in the table yield the following VMEbus slave map:

Table 1-14. VMEbus Slave Map Example

VMEbus Address

Size

CHRP Map

PREP Map

 

 

Range

Mode

 

 

 

 

 

 

 

 

4000 0000 -

A32 U/S/P/D

4K

PCI/ISA I/O Space:

PCI/ISA I/O Space:

4000 0FFF

D08/16/32

0000 1000 - 0000 1FFF

0000 1000 - 0000 1FFF

 

 

 

 

 

 

1000 0000 -

A32 U/S/P/D

 

PCI/ISA Memory Space

PCI/ISA Memory Space

D08/16/32/64

256M

(On-board DRAM)

(On-board DRAM)

1FFF FFFF

RMW

 

0000 0000 - 0FFF FFFF

8000 0000 - 8FFF FFFF

 

 

 

 

 

 

 

Falcon-Controlled System Registers

The Falcon chip set latches the states of the DRAM data lines onto the PR_STAT1 and PR_STAT2 registers. MVME2300 series boards use these status registers to provide the system configuration information. In addition, the Falcon chip set performs the decode and control for an external register port. This function is utilized by MVME2300 series boards to provide the system control registers.

Table 1-15. System Register Summary

BIT # ---->

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FEF80400

 

 

 

 

 

 

System Configuration Register (Upper Falcon’s PR_STAT1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FEF80404

 

 

 

 

 

Memory Configuration Register (Lower Falcon’s PR_STAT1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FEF88000

System External Cache

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Control Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FEF88300

CPU Control Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The following subsections describe these system registers in detail.

1-24

Computer Group Literature Center Web Site

Page 48
Image 48
Motorola MVME2300 Series manual Falcon-Controlled System Registers, VMEbus Slave Map Example, System Register Summary