HD6432646 Hitachi, HD6432646 Datasheet - Page 408

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

TCFV Flag/TCFU Flag Setting Timing: Figure 10-44 shows the timing for setting of the TCFV
flag in TSR by overflow occurrence, and TCIV interrupt request signal timing.
Figure 10-45 shows the timing for setting of the TCFU flag in TSR by underflow occurrence, and
TCIU interrupt request signal timing.
374
(overflow)
(underflow)
TCNT
TCNT
ø
TCNT input
clock
Overflow
signal
TCFV flag
TCIV interrupt
ø
TCNT
input clock
Underflow signal
TCFU flag
TCIU interrupt
Figure 10-44 TCIV Interrupt Setting Timing
Figure 10-45 TCIU Interrupt Setting Timing
H'FFFF
H'0000
H'FFFF
H'0000