HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 276

• Manufacturer Part Number: HD6413008F
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
• Manufacturer: RENESAS [Renesas Technology Corp]

8. 16-Bit Timer
Contention between 16TCNT Byte Write and Increment: If an increment pulse occurs in the T
or T
The byte data for which a write was not performed is not incremented, and retains its pre-write
value. See figure 8.39, which shows an increment pulse occurring in the T
16TCNTH.
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REJ09B0395-0400
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state of a 16TCNT byte write cycle, writing takes priority and 16TCNT is not incremented.
Figure 8.39 Contention between 16TCNT Byte Write and Increment
φ
Address bus
Internal write signal
16TCNT input clock
16TCNTH
16TCNTL
16TCNTH byte write cycle
T
1
N
X
16TCNTH address
16TCNT write data
T
2
X + 1
T
3
2
state of a byte write to
M
X
2