Motorola MPC823e - Real-Time Clock Register

System Interface Unit
MOTOROLA MPC823e REFERENCE MANUAL 12-19
SYSTEM INTERFACE UNIT
12
ALE—Alarm Interrupt Enable
This bit allows the real-time clock to generate an interrupt when the ALR bit is set.
0 = Disables the seconds interrupt.
1 = The real-time clock generates an interrupt.
RTF—Real-Time Clock Freeze Enable
0 = The real-time clock is unaffected by the FRZ signal.
1 = The FRZ signal stops the real-time clock.
RTE—Real-Time Clock Enable
0 = The real-time clock timers are disabled.
1 = The real-time clock timers are enabled.
12.7.2 Real-Time Clock Register
The 32-bit real-time clock (RTC) register contains the current value of the real-time clock.
The maximum value is approximately 136 years.
RTC—Real-Time Clock
This field represents time measured in seconds. Each unit represents one second.
RTC
BIT 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
FIELD RTC
RESET —
R/W R/W
ADDR (IMMR & 0xFFFF0000) + 0x224
BIT 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
FIELD RTC
RESET —
R/W R/W
ADDR (IMMR & 0xFFFF0000) + 0x226
NOTE: — = Undefined.