mc68hc908lj24 Freescale Semiconductor, Inc, mc68hc908lj24 Datasheet - Page 241

• Manufacturer Part Number: mc68hc908lj24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

12.10.7 Second Register (SECR)
12.10.8 Minute Register (MINR)
MC68HC908LJ24/LK24 — Rev. 2.1
Freescale Semiconductor
This register is write-protected; unprotect by a write sequence to RTCWE[1:0] in RTCCOMR.
This register is write-protected; unprotect by a write sequence to RTCWE[1:0] in RTCCOMR.
Address:
Address:
This read/write register contains the current value of the second counter.
This register can be read at any time without affecting the counter count.
Writing to this register loads the value to the second counter and the
counter continues to count from this new value.
The second counter rolls over to 0 ($00) after reaching 59 ($4B). Writing
a value other than 0 to 59 to this register has no effect.
This read/write register contains the current value of the minute counter.
This register can be read at any time without affecting the counter count.
Writing to this register loads the value to the minute counter and the
counter continues to count from this new value.
The minute counter rolls over to 0 ($00) after reaching 59 ($4B). Writing
a value other than 0 to 59 to this register has no effect.
Reset:
Reset:
Read:
Read:
Write:
Write:
$0047
$0048
0
0
0
0
Real Time Clock (RTC)
Figure 12-13. Second Register (SECR)
Figure 12-14. Minute Register (MINR)
= Unimplemented
= Unimplemented
0
0
0
0
SEC5
MIN5
U
U
SEC4
MIN4
U
U
SEC3
MIN3
U
U
SEC2
MIN2
U
U
Real Time Clock (RTC)
SEC1
MIN1
U
U
RTC Registers
Data Sheet
SEC0
MIN0
U
U
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