MC9S08DZ60 Datasheet, PDF (312/396 Pages) Freescale Semiconductor, Inc – Microcontrollers

Real-Time Counter (S08RTCV1)
15.3.2 RTC Counter Register (RTCCNT)
RTCCNT is the read-only value of the current RTC count of the 8-bit counter.
7
R
W
Reset:
0
6
5
4
3
RTCCNT
2
1
0
0
0
0
0
0
0
0
Figure 15-4. RTC Counter Register (RTCCNT)
Table 15-4. RTCCNT Field Description
Field
Description
7:0 RTC Count— These eight read-only bits contain the current value of the 8-bit counter. Writes have no effect to this
RTCCNT register. Reset, writing to RTCMOD, or writing different values to RTCLKS and RTCPS clear the count to 0x00.
15.3.3 RTC Modulo Register (RTCMOD)
7
R
W
Reset:
0
6
5
4
3
RTCMOD
2
1
0
0
0
0
0
0
0
0
Figure 15-5. RTC Modulo Register (RTCMOD)
Table 15-5. RTCMOD Field Descriptions
Field
Description
7:0
RTCMOD
RTC Modulo — These eight read/write bits contain the modulo value used to reset the count to 0x00 upon a
compare match and set the RTIF status bit. A value of 0x00 sets the RTIF bit on each rising edge of the prescaler
output. Writing to RTCMOD resets the prescaler and the RTCCNT counters to 0x00. Reset sets the modulo to
0x00.
MC9S08DZ60 Series Data Sheet, Rev. 1 Draft E
312
Freescale Semiconductor