4

IP2 Chip

IP RESET Register

ADR/SIZ

 

 

 

 

$FFFBC01F (8 bits)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BIT

7

6

 

5

 

4

3

 

2

1

0

 

 

 

 

 

 

 

 

 

 

 

 

NAME

0

0

 

0

 

0

0

 

0

0

RES

 

 

 

 

 

 

 

 

 

 

 

 

OPER

R

R

 

R

 

R

R

 

R

R

R

 

 

 

 

 

 

 

 

 

 

 

 

RESET

0 R

0 R

 

0 R

 

0 R

0 R

 

0 R

0 R

0 R

 

 

 

 

 

 

 

 

 

 

 

RES

 

Setting RES to a one asserts the IP2 chip IPRESET*

 

 

 

signal. IPRESET* is intended to be connected to the

 

 

 

Reset* signal on all four IndustryPacks. When software

 

 

 

sets the RES bit, IPRESET* stays asserted until software

 

 

 

clears RES.

 

 

 

 

 

Note The MVME172 does not comply with the IP specification regarding reset. The MVME172 does not monitor Vcc and assert reset if Vcc is below a certain threshold. The IPRESET signal to the IP bus is asserted when the there is a cold power up reset. This reset will be asserted until the power supplies are stable.

4-30

Computer Group Literature Center Web Site

Page 266
Image 266
Motorola MVME172 manual IP Reset Register