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Section 11 Multi-Function Timer Pulse Unit 2
R01UH0134EJ0400 Rev. 4.00 Page 523 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
(5) Cascaded Operation Example (d)
Figure 11.24 illustrates the operation when TCNT_1 and TCNT_2 have been cascaded and the
I2AE bit in TICCR has been set to 1 to include the TIOC2A pin in the TGRA_1 input capture
conditions. In this example, the IOA0 to IOA3 bits in TIOR_1 have selected TGRA_0 compare
match or input capture occurrence for the input capture timing while the IOA0 to IOA3 bits in
TIOR_2 have selected the TIOC2A rising edge for the input capture timing.
Under these conditions, as TIOR_1 has selected TGRA_0 compare match or input capture
occurrence for the input capture timing, the TIOC2A edge is not used for TGRA_1 input capture
condition although the I2AE bit in TICCR has been set to 1.
TCNT_2 value
H'0000
H'0000
TGRA_1
TGRA_2
Time
TIOC1A
TIOC2A
TCNT_1
H'0513H'0512
H'0513
H'D000
H'FFFF
H'D000
TCNT_0 value
Time
TGRA_0
Compare match between TCNT_0 and TGRA_0
Figure 11.24 Cascaded Operation Example (d)