HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 390

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

10.5.2 Clearing of Status Flags
If the CPU reads a status flag while it is set to 1, then writes 0 in the status flag, the status flag is
cleared. Figure 10-60 shows the timing.
ø
TCNT
Overflow
signal
OVF
OVI
ø
Address
IMF, OVF
H'FFFF
Figure 10-60 Timing of Clearing of Status Flags
Figure 10-59 Timing of Setting of OVF
T
1
378
TSR write cycle
TSR address
T
2
H'0000
T
3