IBASE MB839 - Manual (Page 52)

APPENDIX
46 MB839 Series User’s Manual
CR 0x26 : Watchdog (WDT) WDT_IN# Signal Control Register
Attribute : Read / Write
Reset default : 0x00
Bit
Read /
Write
Description
0
Read /
Write
WDT_OUT# Generator
The capacity use the WDT to reset the
system
1 = Generate 100ms pulse to reset signal
when WDT signal is asserted.
0 = Ignore the WDT signal.
1
Read /
Write
WDT LAN Bypass Enable
The capacity use the WDT to set LAN
Bypass function
1 = Enable LAN Bypass function when the
WDT signal is asserted.
CR 0x28 and CR 0x2A will be available if
this bit is set to "1".
0 = Disable WDT LAN Bypass function.
2 ~ 7 Reserved
CR 0x28 : Watchdog (WDT) Bypass Control Register
Attribute : Read / Write
Reset default : 0x0000
Bit
LAN
Port#
Read /
Write
Description
0 Eth3, 4
Read /
Write
Enable / Disable WDT Bypass
function for each LAN port.
1 = Follow the setting in "WDT
Bypass Register CR 0x2A"
when the WDT signal is
asserted.
0 = Ignore to control the bypass
when the WDT is asserted.