MC68HC908LK24 MOTOROLA [Motorola, Inc], MC68HC908LK24 Datasheet - Page 231
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MC68HC908LK24
Manufacturer Part Number
MC68HC908LK24
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC908LK24.pdf
(465 pages)
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12.10.1 RTC Calibration Control Register (RTCCOMR)
MC68HC908LJ24/LK24 — Rev. 2
MOTOROLA
NOTE:
* CAL, AUTOCAL, and OUTF{1:0] bits are write-protected; unprotect by a write sequence to RTCWE[1:0].
Address:
The RTC calibration control register (RTCCOMR) contains control bits
for RTC calibration, output option for the CALOUT pin, and registers/bits
write-protect enable.
CAL — RTC Calibration Mode
AUTOCAL — RTC Automatic Calibration Enable
RTC clock and calendar functions are not affected when calibration is
enabled.
Reset:
Read:
Write:
This read/write bit enables the RTC calibration circuit. The CAL bit is
cleared automatically after completion of automatic calibration if
AUTOCAL is also set when CAL bit is set.
This read/write bit enables the CALIN pin to accept an incoming
1-Hz signal and calibration circuits for RTC automatic calibration. This
bit can only be set when the CAL bit is set. After calibration (approx.
15 seconds), the AUTOCAL bit is automatically cleared.
Freescale Semiconductor, Inc.
Figure 12-6. RTC Calibration Control Register (RTCCOMR)
For More Information On This Product,
1 = RTC calibration mode enabled
0 = RTC calibration mode disabled
1 = RTC automatic calibration enabled
0 = RTC automatic calibration disabled
$0040
R
0
0
Go to: www.freescale.com
Real Time Clock (RTC)
R
0
0
CAL*
0
AUTOCAL*
0
OUTF1*
0
OUTF0*
0
Real Time Clock (RTC)
RTCWE1 RTCWE0
0
0
RTC Registers
Data Sheet
0
0
231
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