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HD6433644R Datasheet(PDF) 274 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) 274 Page - Renesas Technology Corp

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Section 9 Timers
Rev. 6.00 Sep 12, 2006 page 254 of 526
REJ09B0326-0600
Write Access: Write access to the upper byte results in transfer of the upper-byte write data to
TEMP. Next, write access to the lower byte results in transfer of the data in TEMP to the upper
register byte, and direct transfer of the lower-byte write data to the lower register byte.
Figure 9.18 shows an example of the writing of H'AA55 to FRC.
CPU
(H'AA)
Write to upper byte
Write to lower byte
CPU
(H'55)
Bus
interface
Bus
interface
Module data bus
Module data bus
TEMP
(H'AA)
FRCH
(
)
FRCL
(
)
TEMP
(H'AA)
FRCH
(H'AA)
FRCL
(H'55)
Figure 9.18 Write Access to FRC (CPU
→
→
→
→ FRC)



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