Hitachi H8/500 Series Hardware Manual page 219

Figure 10-13 shows this type of contention.
ø
Internal address bus
Internal write signal
FRC clock pulse
FRC
Downloaded from Elcodis.com electronic components distributor
Write cycle: CPU write to lower byte of FRC
T
1
Figure 10-13 FRC Write-Increment Contention
T T
2 3
FRC address
N
Write data
202
M