Hardware Preparation

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.).

 

 

 

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 B) for the ROM defaults.

 

 

 

Bit #2 (GPI2)

5-6

Reserved for future use.

 

 

 

Bit #3 (GPI3)

7-8

Reserved for bug board ID 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.

 

 

 

b.Jumpers on headers J2, J6, J7, J8, J9, and J10 configure the board as described in the instructions in Table 2-2.

3.Be sure that the two 256K x 16 177Bug EPROMs are installed in proper sockets on the MVME177 module. Install the odd label (such as B01) EPROM in socket XU1 (for Least Significant Words), and install the even label (such as B02) EPROM in XU2 (for Most Significant Words). Be sure that physical chip orientation is correct, with flatted corner of each EPROM aligned with corresponding portion of EPROM socket on the MVME177 module.

4.This completes the MVME177 Module hardware preparation procedures. Proceed to the next section to install the module in the chassis. Refer to the setup procedure for your particular chassis or system for details concerning the installation of the MVME177.

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Motorola MVME177 manual Bit J1 Pins Description