Memory Maps and Registers

5.5.15 PLD Shutdown and Reset Control and Reset Reason Register

The MVME2500 provides an 8-bit register to execute the shutdown and reset commands. The board's reset reason is also included in this register.

Table 5-18 PLD Shutdown and Reset Control and Reset Reason Register

REG

PLD Shutdown and Reset Reason- 0xFFDF00FF

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit

7

6

5

4

3

2

1

0

 

 

 

 

 

 

 

 

 

Field

AUTO_SH

Shutdown

Soft_RST

Clear_Cause

CPU_RESET

WD_TIME

LRSTO

Sft_RST

 

DN_MASK

 

 

 

 

OUT

 

 

 

 

 

 

 

 

 

 

 

OPER

R/W

W

W

W

R

 

 

 

 

 

 

 

 

 

 

 

 

RESET

0

0

0

0

X

X

X

X

 

 

 

 

 

 

 

 

 

Field Description

 

 

AUTO_SHDN_MASK

Automatic Shutdown Mask

 

1

- Auto Shutdown Mask Enable

 

0

- Auto Shutdown Mask Disable

Note: Automatic shutdown is generated after 1 second whenever a power good signal de- asserts.

Shutdown

Board Shutdown Register

 

1

- Shutdown Enable

 

0

- Shutdown Disable

Note: If a board entered the shutdown state (by writing a '1' in this register), the chassis' power needs to be cycled to power up the board again.

Soft_RST

Board Soft Reset (self clearing)

 

1

- Execute soft reset

 

0

- No reset

Clear_Cause

Clear Reset Reason (self clearing)

 

1

- Clear Reason

 

0

- None

MVME2500 Installation and Use (6806800L01H)

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Emerson MVME2500 manual PLD Shutdown and Reset Control and Reset Reason Register, Autosh, Cpureset Wdtime Lrsto