XE8000EV108 Semtech, XE8000EV108 Datasheet - Page 36

• Manufacturer Part Number: XE8000EV108
• Description: EVAL BOARD FOR XE8806/XE8807
• Manufacturer: Semtech
• Type: MCUr

Specifications of XE8000EV108

• Contents: Fully Assembled Evaluation Board
• For Use With/related Products: XE88LC06AMI026
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

6.4
There are 5 reset sources:
© Semtech 2006
Reset handling capabilities
• Power On Reset (POR)
• External reset from the NRESET pin
• Programmable port A input combination
• Programmable watchdog timer reset
• Programmable BusError reset on processor access outside the allocated memory map
3 – 0
2 – 0
Pos.
Pos.
Pos.
7 - 4
7
6
5
4
7
6
5
4
3
3
2
1
0
RegSysCtrl
SleepEn
EnResetPConf
EnBusError
EnResetWD
-
RegSysReset
Sleep
SleepFlag
ResetBusError
ResetWD
ResetfromportA
RegSysWd
-
WDKey[3]
WDCounter[3]
WDKey[2]
WDCounter[2]
WDKey[1]
WDCounter[1]
WDKey[0]
WDCounter[0]
Rw
r w
r w
r w
r w
r
Rw
rw
r c
r c
r c
r c
r
Rw
r
w
r
w
r
w
r
w
r
Table 6-3. RegSysReset register
Table 6-2. RegSysCtrl register.
Table 6-4. RegSysWd register
Reset
0 nresetcold
0 nresetcold
0 nresetcold
0 nresetcold
0000
Reset
0 nresetglobal
0 nresetcold
0 nresetcold
0 nresetcold
0 nresetcold
000
Reset
0000
0 nresetglobal
0 nresetglobal
0 nresetglobal
0 nresetglobal
6-3
Function
enables Sleep mode
enables the nresetpconf signal when the
nresetglobal is active
enables reset from BusError
enables reset from Watchdog
this bit can not be set to 0 by SW
unused
Function
Sleep mode control (reads always 0)
Sleep mode was active before
reset source was BusError
reset source was Watchdog
reset source was Port A combination
unused
Function
unused
Watchdog Key bit 3
Watchdog counter bit 3
Watchdog Key bit 2
Watchdog counter bit 2
Watchdog Key bit 1
Watchdog counter bit 1
Watchdog Key bit 0
Watchdog counter bit 0
0: sleep mode is disabled
1: sleep mode is enabled
0: nresetpconf is disabled
1: nresetpconf is enabled
0: BusError reset source is disabled
1: BusError reset source is enabled
0: Watchdog reset source is disabled
1: Watchdog reset source is enabled
XE8806A/XE8807A
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