Rev. 1.0, 02/00, page 706 of 1141
PB-CTL Waveform Shaper in Slow Mode Operation: If bit 0 in CTL control register (CTCR)
is set to slow mode, slow reset function is activated. In slow mode, if falling edge is not detected
within the specified time from rising edge detection, PB-CTL is forcibly shut down (slow reset).
The time T
FS
(s) until the signal falls is the following interval after the rising edge of the internal
CTL signal is detected:
T
FS
= 16384
×
4/
φ
s
(
φ
s = f
OSC
/2)
When f
OSC
= 10 MHz, T
FS
= 13.1 ms.
Figure 26.54 shows the PB-CTL waveform in slow mode.
CTL
waveform
Internal
CTL signal
1 frame
1 frame
Slow tracking delay
Slow tracking delay
Acceleration
Acceleration
Deceleration Deceleration
Slow
reset
Stop
Stop
CTLP
↑
CTLP
↑
Figure 26.54 PB-CTL Waveform in Slow Mode Operation