mc9s08dn60 Freescale Semiconductor, Inc, mc9s08dn60 Datasheet - Page 254

• Manufacturer Part Number: mc9s08dn60
• Description: Hcs08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 14 Real-Time Counter (S08RTCV1)
14.3.2
RTCCNT is the read-only value of the current RTC count of the 8-bit counter.
14.3.3
254
RTCMOD
RTCCNT
Field
Field
7:0
7:0
Reset:
Reset:
W
W
R
R
RTC Count— These eight read-only bits contain the current value of the 8-bit counter. Writes have no effect to this
register. Reset, writing to RTCMOD, or writing different values to RTCLKS and RTCPS clear the count to 0x00.
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.
RTC Counter Register (RTCCNT)
RTC Modulo Register (RTCMOD)
7
0
7
0
0
0
6
Figure 14-4. RTC Counter Register (RTCCNT)
6
Figure 14-5. RTC Modulo Register (RTCMOD)
Table 14-5. RTCMOD Field Descriptions
Table 14-4. RTCCNT Field Description
MC9S08DN60 Series Data Sheet, Rev 2
0
0
5
5
0
0
4
4
Description
Description
RTCMOD
RTCCNT
0
0
3
3
0
0
2
2
Freescale Semiconductor
0
0
1
1
0
0
0
0