Motorola MVME187 manual 2. J1 Bit Descriptions, GPI0 - GPI3, GPI4 - GPI7

Models: MVME187

1 173
Download 173 pages 29 Kb
Page 61
Image 61
Table 3-2. J1 Bit Descriptions

 

 

 

Preparing the Hardware

 

 

 

Table 3-2. J1 Bit Descriptions

 

 

 

 

 

 

Bit

J1 Pins

Description

 

 

 

 

 

 

 

Bit #0 (GPI0)

1-2

When this bit is a one (high), it instructs the debugger to use

 

 

 

 

local Static RAM for its work page (i.e., variables, stack, vector

 

 

 

 

tables, etc.). This bit will be high when jumper is removed.

 

 

 

 

 

 

 

Bit #1 (GPI1)

3-4

When this bit is a one (high), it instructs the debugger to use

 

 

 

 

the default setup/operation parameters in ROM versus the

 

 

 

 

user setup/operation parameters in NVRAM. This is the same

 

 

 

 

as depressing the RESET and ABORT switches at the same

 

 

 

 

time. This feature can be used in the event the user setup is

 

 

 

 

corrupted or does not meet a sanity check. Refer to the ENV

 

 

 

 

command (Appendix A) for the ROM defaults. This bit will be

 

 

 

 

high when jumper is removed.

 

 

 

 

 

 

 

Bit #2 (GPI2)

5-6

Reserved for future use.

 

 

 

 

 

 

 

Bit #3 (GPI3)

7-8

Reserved for future use.

 

 

 

 

 

 

 

Bit #4 (GPI4)

9-10

Open to your application.

 

 

 

 

 

 

 

Bit #5 (GPI5)

11-12

Open to your application.

 

 

 

 

 

 

 

Bit #6 (GPI6)

13-14

Open to your application.

 

 

 

 

 

 

 

Bit #7 (GPI7)

15-16

Open to your application.

 

 

 

 

 

 

Table 3-3. Factory Settings for J1 General Purpose Readable Jumpers

Header

Header

ConÞguration

 

 

 

 

 

 

 

 

Jumpers

 

 

 

 

 

 

Number

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GPI0 - GPI3:

 

 

GPI7

GPI6

GPI5

GPI4

GPI3

GPI2

GPI1

GPI0

 

General

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J1

purpose

GPI4 - GPI7:

15

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

1

 

software

User-deÞnable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

readable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

jumpers

(Factory

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

conÞguration)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

3-9

Page 61
Image 61
Motorola MVME187 manual 2. J1 Bit Descriptions, 3. Factory Settings for J1 General Purpose Readable Jumpers, GPI0 - GPI3