HD6433935 Hitachi, HD6433935 Datasheet - Page 216
HD6433935
Manufacturer Part Number
HD6433935
Description
8-Bit MICROCONTROLLER
Manufacturer
Hitachi
Datasheet
1.HD6433935.pdf
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Bit 5: Timer overflow interrupt enable H (OVIEH)
Bit 5 selects enabling or disabling of interrupt generation when TCFH overflows.
Bit 5
OVIEH
0
1
Bit 4: Counter clear H (CCLRH)
In 8-bit mode, bit 4 selects whether TCF is cleared when TCF and OCRF match.
In 8-bit mode, bit 4 selects whether TCFH is cleared when TCFH and OCRFH match.
Bit 4
CCLRH
0
1
Bit 3: Timer overflow flag L (OVFL)
Bit 3 is a status flag indicating that TCFL has overflowed from H'FF to H'00. This flag is set by
hardware and cleared by software. It cannot be set by software.
Bit 3
OVFL
0
1
204
Description
TCFH overflow interrupt request is disabled
TCFH overflow interrupt request is enabled
Description
16-bit mode: TCF clearing by compare match is disabled
8-bit mode: TCFH clearing by compare match is disabled
16-bit mode: TCF clearing by compare match is enabled
8-bit mode: TCFH clearing by compare match is enabled
Description
Clearing conditions:
After reading OVFL = 1, cleared by writing 0 to OVFL
Setting conditions:
Set when TCFL overflows from H'FF to H'00
(initial value)
(initial value)
(initial value)
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