Table of Contents
Advertisement
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
BIT
0
1
2
FIELD
RESET
R/W
ADDR
BIT
16
17
18
FIELD
RESET
R/W
ADDR
NOTE: — = Undefined.
RTC—Real-Time Clock
This field represents time measured in seconds. Each unit represents one second.
Freescale Semiconductor, Inc.
3
4
5
6
(IMMR & 0xFFFF0000) + 0x224
19
20
21
22
(IMMR & 0xFFFF0000) + 0x226
MPC823 REFERENCE MANUAL
For More Information On This Product,
Go to: www.freescale.com
7
8
9
10
11
RTC
—
R/W
23
24
25
26
27
RTC
—
R/W
System Interface Unit
12
13
14
15
28
29
30
31
12-19
Advertisement
Table of Contents
