HD6432670 Hitachi, HD6432670 Datasheet - Page 611

• Manufacturer Part Number: HD6432670
• Description: (HD64F267x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

11.9
11.9.1
TCNT Count Timing: Figure 11.30 shows TCNT count timing in internal clock operation, and
figure 11.31 shows TCNT count timing in external clock operation.
Output Compare Output Timing: A compare match signal is generated in the final state in
which TCNT and TGR match (the point at which the count value matched by TCNT is updated).
When a compare match signal is generated, the output value set in TIOR is output at the output
compare output pin. After a match between TCNT and TGR, the compare match signal is not
generated until the (TIOC pin) TCNT input clock is generated.
Figure 11.32 shows output compare output timing.
Internal clock
TCNT
input clock
TCNT
External clock
TCNT
input clock
TCNT
Operation Timing
Input/Output Timing
Figure 11.31 Count Timing in External Clock Operation
Figure 11.30 Count Timing in Internal Clock Operation
Falling edge
N – 1
N – 1
Falling edge
N
N
Rising edge
Rising edge
N + 1
N + 1
Rev. 2.0, 04/02, page 565 of 906
Falling edge
N + 2
N + 2