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15 reset control and reset reason register, Table 5-17 – Artesyn MVME2500 ECC Installation and Use (August 2014) User Manual

Page 101

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Memory Maps and Registers

MVME2500-ECC Installation and Use (6806800N30F)

101

5.4.15 Reset Control and Reset Reason Register

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

Note: Changing a Reserved Register setting may cause damage to the board damage or
malfunction. Reserved register settings should not be changed.

Table 5-17 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
DN_MASK

Shutdown

Soft_RST

Clear_Cause

CPU_RESET

WD_TIME
OUT

LRSTO

Sft_RST

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