HD6433044 Datasheet, PDF (393/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

Contention between TCNT Word Write and Increment: If an increment pulse occurs in the T₃
state of a TCNT word write cycle, writing takes priority and TCNT is not incremented. See
figure 10-62.
TCNT word write cycle
T₁
T₂
T₃
ø
Address bus
TCNT address
Internal write signal
TCNT input clock
TCNT
N
M
TCNT write data
Figure 10-62 Contention between TCNT Word Write and Increment
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