M16CSLASH29 datasheet(183/499 Pages) RENESAS

183 / 499 page

13. Timer S

page 159

Figure 13.20 Time Measurement Function (2)

2. No interrupt is generated if the MCU receives a trigger signal when the G1IRj bit is set to 1.

1. Bits in the G1IR register.

2. Input pulse applied to the INPC1j pin requires 1.5 fBT1 clock cycles or more.

n-2

n-1

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

n +5

n+8

n-2

n-1

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

n+2

n+5

n+8

n+12

Delayed by 1 clock

fBT1

Base timer

INPC1j pin input or

trigger signal after

passing the digital

filter

G1TMj register

(a) When selecting the rising edge as a timer measurement trigger

(Bits CTS1 and CTS0 in the G1TMCRj register (j=0 to 7)=012)

G1IRj bit (1)

write 0 by program if setting to 0

NOTES :

(2)

(b)

When selecting both edges as a timer measurement trigger

(Bits CTS1 and CTS0 = 112)

Maximum 3.5 f1 or f2 or fBT1

clock cycles (1)

(Bits DF1 to DF0 in the G1TMCRj register =102 or 112)

Signals, which do not match 3

times, are stripped off

fBT1

Base timer

INPC1j pin input or

trigger signal after

passing the digital

filter

G1TMj register (2)

G1IRj bit (1)

f1 or f2 or fBT1 (1)

INPC1j pin

Trigger signal after

passing the digital

filter

NOTES :

1. Bits in the G1IR register.

However, the value of the G1TMj register is updated.

NOTE:

1. fBT1 when bits DF1 to DF0 are set to 102, and f1 or f2 when set to 112.

The trigger signal is delayed

by the digital filter

write 0 by program

if setting to 0

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