MAX16068 Datasheet, PDF (22/40 Pages) Maxim Integrated Products – 6-Channel, Flash-Configurable System Manager with Nonvolatile Fault Registers

6-Channel, Flash-Configurable System Manager
with Nonvolatile Fault Registers
VCC
WDI
0V
V_CC
RESET
0V
V_CC
WDO
0V
< tWDI
tWDI
tRP
< tWDI_STARTUP
< tWDI
1µs
Figure 5. Watchdog Startup Sequence with Watchdog Reset Enable Bit Set to ‘1’
Table 16. Watchdog Configuration
REGISTER
ADDRESS
FLASH
ADDRESS
BIT
RANGE
DESCRIPTION
73h
273h
[4]
1 = Independent mode
0 = Dependent mode
[7]
1 = Watchdog reset output enabled
0 = Watchdog reset output disabled
[6:4]
Watchdog Startup Delay
000 = No initial timeout
001 = 30s
010 = 40s
011 = 80s
100 = 120s
101 = 160s
110 = 220s
111 = 300s
Watchdog Timeout
0000 = Watchdog disabled
76h
276h
0001 = 1ms
0010 = 2ms
0011 = 4ms
0100 = 8ms
0101 = 14ms
0110 = 27ms
[3:0]
0111 = 50ms
1000 = 100ms
1001 = 200ms
1010 = 400ms
1011 = 750ms
1100 = 1.4s
1101 = 2.7s
1110 = 5s
1111 = 10s
22   �������������������������������������������������������������������������������������