HD6433935 Hitachi, HD6433935 Datasheet - Page 219

• Manufacturer Part Number: HD6433935
• Description: 8-Bit MICROCONTROLLER
• Manufacturer: Hitachi

1. 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 9-4 shows an example in which H'AA55 is written to TCF.
Write to upper byte
Write to lower byte
(H'AA)
(H'55)
CPU
CPU
Figure 9-4 Write Access to TCF (CPU
Bus
interface
Bus
interface
(
(H'AA)
TCFH
TCFH
)
(H'AA)
(H'AA)
TEMP
TEMP
TCF)
Module data bus
Module data bus
(
(H'55)
TCFL
TCFL
)
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