NA580 Series User
’s Manual
58
LAN Bypass Configuration
Bit 7
TEXP (Read Only)
This bit indicates status of hardware timer.
0
Timer has not expired
1
Timer has expired
Bits 6~3
Not used.
Bits 2~0
TVAL2~0
These bits determine the amount of count value in second(s).
001
1 (sec)
010
2 (sec)
011
4 (sec)
100
8 (sec)
101
16 (sec)
110
32 (sec)
111
64 (sec)
000
Timer is not activated.
Writing a value to these bits will reset the hardware timer. The counting process
begins again according to the new written value. Software must write count value
periodically to ensure that timer will never expire. If timer timeout occurs, relay(s)
automatically close to form LAN bypass on selected segment(s) based on the
setting of Power On Bypass Control register (SEGN4~SEGN1).
Data (bits 6~0) read back from this register is not defined and therefore must be ignored. A
read operation upon this register should not refresh the hardware timer.
LAN Bypass Status / Firmware Version Register
Address:
Mother board
LAN module
0x8E3
0x8E7
7
6
5
4
3
2
1
0
VER3
VER2
VER1
VER0
BY4
BY3
BY2
BY1
R
R
R
R
R
R
R
R
Bit3~0 Lan Bypass Seg.1 status
Disable=0; Enable=1
Bit 7~4 Firmware version
Without Lan bypass function=1111
Summary of Contents for NA580 series
Page 1: ...NA580 Series SMB Network Appliance User s Manual ...
Page 16: ...NA580 Series User s Manual 10 Hardware and Installation 2 2 Board Layout TOP ...
Page 17: ...NA580 Series User s Manual Hardware and Installation 11 BOTTOM ...
Page 43: ...NA580 Series User s Manual AMI BIOS Setup Utility 37 Console Redirection Settings ...
Page 53: ...NA580 Series User s Manual AMI BIOS Setup Utility 47 PCH IO Configuration ...
Page 66: ...NA580 Series User s Manual 60 WDT Timer for System Rese This page is intentionally left blank ...
Page 76: ...NA580 Series User s Manual 70 Warning This page is intentionally left blank ...