Timer C - Renesas R8C/18 Series Hardware Manual

R8C/18 Group, R8C/19 Group
14.3

Timer C

Timer C is a 16-bit timer. Figure 14.23 shows a Block Diagram of Timer C. Figure 14.24 shows a Block
Diagram of CMP Waveform Generation Unit. Figure 14.25 shows a Block Diagram of CMP Waveform
Output Unit.
Timer C has two modes: input capture mode and output compare mode. Figures 14.26 to 14.29 show the
Timer C-associated registers.
TCC11 to TCC10
f1
f8
f32
INT3/TCIN
fRING128
TCC02 to TCC01
= 00b
f1
= 01b
f8
= 10b
f32
= 11b
fRING-fast
TCC01 to TCC02, TCC07: Bits in TCC0 register
TCC10 to TCC12: Bits in TCC1 register
Figure 14.23 Block Diagram of Timer C
Rev.1.30 Apr 14, 2006
REJ09B0222-0130
Sampling
= 01b
clock
= 10b
= 11b
Other than
00b Digital
filter
= 00b
Higher 8 bits
Capture and compare 0 register
Higher 8 bits
TYC00
Higher 8 bits
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TCC07 = 0
Edge
detection
TCC07 = 1
Lower 8 bits
TM0 register
Compare circuit 0
Lower 8 bits
Counter
TC register
TCC12 = 0
Compare circuit 1
Lower 8 bits
Compare register 1
TM1 register
INT3 interrupt
Transfer signal
Compare 0 interrupt
Timer C interrupt
TCC12 = 1
Timer C counter reset signal
Compare 1 interrupt
14. Timers