Panasonic F77G User Manual page 306

Chapter 8 Time Base Timer / 8-bit Free-running Timer
8-bit Free-running Timer as a 1 minute-timer, a 1 second-timer
Table 8-3-2 shows the clock source selection and the TM6OC register setup, when a 8-bit free-running
timer is used as a 1 minute-timer, a 1 second-timer.
Table 8-3-2
fx = 32.768(kHz)
When the 1 minute-timer (1 min.) is set on Table 8-3-2, the bp1 waveform frequency (cycle) of the
TM6BC register is 1 Hz (1 s). So, that can be used for adjusting the seconds.
TM6BC
bp1
VIII - 8
8-bit Free-running Timer
1 minute-timer, 1 second-timer Setup (Timer 6)
Interrupt Generation
Cycle
1 min
1 s
1 Hz(1 s)
Figure 8-3-1 Waveform of TM6BC Register bp1 (Timer 6)
Clock Source TM6OC Register
13
fx x 1/2
12
fx x 1/2
13
fx x 1/2
X'EF'
X'07'
X'03'