78M6612 Data Sheet
DS_6612_001
Name
Location
Rst Wk
Dir
Description
WAKE_ARM
20A9[7]
0
–
W
Arm the autowake timer. Writing a 1 to this bit arms the
autowake timer and presets it with the values presently in
WAKE_PRD and WAKE_RES. The autowake timer is reset
and disarmed whenever the MPU is in MISSION mode or
BROWNOUT mode. The timer must be armed at least
three RTC cycles before the SLEEP or LCD-ONLY mode
is commanded.
WAKE_PRD
WAKE_RES
WD_RST
20A9[2:0]
20A9[3]
001
0
–
–
0
R/W Sleep time. Time=WAKE_PRD[2:0]*WAKE_RES.
Default=001. Maximum value is 7.
R/W Resolution of WAKE timer: 1 – 1 minute, 0 – 2.5
seconds.
SFRE8[7]
0
W
WD timer bit: Possible operations to this bit are:
Read: Gets the status of the flag IE_PLLFALL
Write 0: Clears the flag.
Write 1:.Resets the WDT.
WD_OVF
2002[2]
0
–
0
–
R/W The WD overflow status bit. This bit is set when the WD
timer overflows. It is powered by the non-volatile supply
and at bootup will indicate if the part is recovering from a
WD overflow or a power fault. This bit should be cleared
by the MPU on bootup. It is also automatically cleared
when RESET is high.
WE
201F[7:0]
W
Write operations on the RTC registers must be preceded
by a write operation to WE.
82
Rev. 1.2
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
