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MC33889DDWR2 Datasheet(PDF) 49 Page - Freescale Semiconductor, Inc

Part # MC33889DDWR2
Description  System Basis Chip with Low Speed Fault Tolerant CAN Interface
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC33889DDWR2 Datasheet(HTML) 49 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
49
33889
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
Table 26. Watch dog
Table 27. jWatchdog operation (window and timeout)
TIM2 REGISTER
The purpose of TIM2 register is to select an appropriate timing for sensing the wake-up circuitry or cyclically supplying devices
by switching on or off HS1
Table 28. TIM2 Register
WDW
WDT1
WDT0
Watchdog timing [ms]
0
0
0
10
no window watchdog
0
0
1
50
0
1
0
100
0
1
1
350
1
0
0
10
window watchdog enabled (window lenght is
half the watchdog timing)
1
0
1
50
1
1
0
100
1
1
1
350
window closed
window open
WD timing * 50%
WD timing * 50%
Watchdog period
for watchdog clear
no watchdog clear
window open
Watchdog period
for watchdog clear
(WD timing selected by TIM 1 bit WDW=1)
(WD timing selected by TIM 1, bit WDW=0)
Timeout watchdog
Window watchdog
TIM2
D3
D2
D1
D0
$101b
W
1
CSP2
CSP1
CSP0
R
Reset
0
0
0
Reset
condition
POR, RESET
POR, RESET
POR, RESET


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