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Intel
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IXP42X product line and IXC1100 control plane processors—Timers
Intel
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
DM September 2006
414 Order Number: 252480-006US
14.4.7 Watch-Dog Enable Register
14.4.8 Watch-Dog Key Register
Register Name: OST_WDOG_ENAB
Hex Offset Address: 0x C800 5018 Reset Hex Value: 0x00000000
Register
Description:
Watch-Dog Enable Register
Access: Read/Write.
31 16 15 3 2 0
(Reserved)
watch-dog
enable bits
Register
OST_WDOG_ENAB
Bits Name Description
31:3 (Reserved). Returns 0 if read
2wdog_cnt_ena
Watch-dog count enable bit. Logic 1 enables Watch-Dog Timer Down Counter to
decrement. A write to this register has no effect unless ost_wdog_key=0x482E
1wdog_int_ena
Watch-dog Interrupt Enable. Logic 1 enables the watch-dog interrupt signal to be
generated when the Watch-Dog Timer Down Counter reaches a value of zero. A
write to this register has no effect unless ost_wdog_key=0x482E
0wdog_rst_ena
Watch-dog Reset Enable. Logic 1 enables the watch-dog timer reset to be
generated to the chip when the Watch-Dog Timer Down Counter reaches a value
of zero. A write to this register has no effect unless ost_wdog_key=0x482E
Register Name: OST_WDOG_KEY
Hex Offset Address: 0x C800 501C Reset Hex Value: 0x00000000
Register
Description:
Watch-Dog Key Register
Access: Read/Write.
31 16 15 0
(Reserved) key_value
Register
OST_WDOG_KEY
Bits Name Description
31:16 (Reserved). Returns 0, if read.
15:0 key_value
Reset Key Value. Value of the reset key in which access is allowed to
ost_wdog_enab and ost_wdog. The key value is 0x482E.