mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 290

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

12.7.4 Real-Time Clock Alarm Register
The 32-bit read/write real-time clock alarm (RTCAL) register is an alarm reference register.
When the RTC register increments to the value stored in this register, an alarm interrupt is
generated.
ALARM—Alarm Reference Counter
This field indicates that an alarm interrupt will be generated as soon as there is a match
between this field and the corresponding bits in the RTC register. The alarm has a 1 second
resolution.
RTCAL
NOTE: — = Undefined.
RESET
RESET
FIELD
ADDR
FIELD
ADDR
R/W
R/W
BIT
BIT
16
0
17
1
18
2
Freescale Semiconductor, Inc.
For More Information On This Product,
19
3
20
MPC823 REFERENCE MANUAL
4
Go to: www.freescale.com
21
5
(IMMR & 0xFFFF0000) + 0x22C
(IMMR & 0xFFFF0000) + 0x22E
22
6
23
7
ALARM
ALARM
R/W
R/W
—
—
24
8
25
9
10
26
11
27
System Interface Unit
12
28
13
29
14
30
12-21
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