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HD6433644R Datasheet(PDF) 285 Page - Renesas Technology Corp

Part # HD6433644R
Description  8-Bit Single-Chip Microcomputer
PDF  549 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6433644R Datasheet(HTML) 285 Page - Renesas Technology Corp

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Section 9 Timers
Rev. 6.00 Sep 12, 2006 page 265 of 526
REJ09B0326-0600
9.5.8
Application Notes
The following types of contention can occur in timer X operation.
1. Contention between FRC write and counter clear
If an FRC clear signal is generated in the T3 state of a write cycle to the lower byte of FRC,
clearing takes precedence and the write to the counter is not carried out. Figure 9.32 shows the
timing.
T1
T2
T3
FRC lower byte write cycle
Address
FRC address
Internal write
signal
φ
Counter clear
signal
FRC
N
H'0000
Figure 9.32 Contention between FRC Write and Clear



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