XE8805 SEMTECH [Semtech Corporation], XE8805 Datasheet - Page 37

• Manufacturer Part Number: XE8805
• Description: Data Acquisition MCU
• Manufacturer: SEMTECH [Semtech Corporation]

6.1 Features
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6.2 Overview
The reset block is the reset manager. It handles the different reset sources and distributes them through the
system. It also controls the sleep mode of the circuit.
6.3 Register map
Table 6-1. RegSysCtrl register.
Table 6-2. RegSysReset register
© Semtech 2006
3 – 0
Pos.
Pos.
7
6
5
4
7
6
5
4
3
2
1
0
Power On Reset (POR)
External reset from the RESET pin
Programmable Watchdog timer reset
Programmable BusError reset
Sleep mode management
Programmable Port A input combination reset
RegSysCtrl
SleepEn
EnResPConf
EnBusError
EnResWD
-
RegSysReset
Sleep
-
ResetBusError
ResetWD
ResetfromportA
ResPad
ResPadSleep
-
Rw
r w
r w
r w
r w
r
Rw
rw
r
r c
r c
r c
r c
r c
r
Reset
0 resetcold
0 resetcold
0 resetcold
0 resetcold
0000
Reset
0 resetsystem
0
0 resetcold
0 resetcold
0 resetcold
0 resetcold
0 resetcold
0
Function
enables Sleep mode
enables the resetpconf signal when the
resetglobal 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)
unused
reset source was BusError
reset source was Watchdog
reset source was Port A combination
reset source was reset pad
reset source was reset pad in sleep mode
unused
0: sleep mode is disabled
1: sleep mode is enabled
0: resetpconf is disabled
1: resetpconf 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
6-2
XE8805/05A
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