M16C29 Datasheet, PDF (183/499 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M16C/Tiny SERIES

M16C/29 Group
13. Timer S
(a) ^{When selecting the rising edge as a timer measurement trigger}
(Bits CTS1 and CTS0 in the G1TMCRj register (j=0 to 7)=012)
fBT1
Base timer
INPC1j pin input or
trigger signal after
passing the digital
filter
n-2 n-1 n n+1 n+2 n+3 n+4 n+5 n+6 n+7 n+8 n+9 n+10 n+11 n+12 n+13 n+14
(2)
G1IRj bit ⁽¹⁾
G1TMj register
Delayed by 1 clock
n
n +5
write 0 by program if setting to 0
n+8
NOTES :
1. Bits in the G1IR register.
2. Input pulse applied to the INPC1j pin requires 1.5 fBT1 clock cycles. or more.
(b) When selecting both edges as a timer measurement trigger
(Bits CTS1 and CTS0 = 112)
fBT1
Base timer
n-2 n-1 n n+1 n+2 n+3 n+4 n+5 n+6 n+7 n+8 n+9 n+10 n+11 n+12 n+13 n+14
INPC1j pin input or
trigger signal after
passing the digital
filter
G1IRj bit ⁽¹⁾
G1TMj register ⁽²⁾
n
n+2
n+5
n+8
NOTES :
1. Bits in the G1IR register.
2. No interrupt is generated if the MCU receives a trigger signal when. the G1IRj bit is set to 1.
However, the value of the G1TMj register is updated.
write 0 by program
if setting to 0
n+12
(c) Trigger signal when using digital filter
(Bits DF1 to DF0 in the G1TMCRj register =102 or 112)
f1 or f2 or fBT1 ⁽¹⁾
INPC1j pin
Trigger signal after
passing the digital
filter
Signals, which do not match 3
times, are stripped off
Maximum 3.5 f1 or f2 or fBT1
clock cycles ⁽¹⁾
The trigger signal is delayed
by the digital filter
NOTE:
1. fBT1 when bits DF1 to DF0 are set to 102, and f1 or f2 when set to 112.
Figure 13.20 Time Measurement Function (2)
Rev. 1.12 Mar.30, 2007 ^{page 159} of 458
REJ09B0101-0112