HD6433640 HITACHI [Hitachi Semiconductor], HD6433640 Datasheet - Page 259

• Manufacturer Part Number: HD6433640
• Description: H8/3644 Series Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

TCSRX is initialized to H'00 upon reset and in standby mode, watch mode, subsleep mode, and
subactive mode. Other timing is described in section 9.6.3, Timer Operation.
Bit 7—Input Capture Flag A (ICFA): Bit 7 is a status flag that indicates that the FRC value has
been transferred to ICRA by an input capture signal. If BUFEA is set to 1 in TCRX, ICFA
indicates that the FRC value has been transferred to ICRA by an input capture signal and that the
ICRA value before this update has been transferred to ICRC.
This flag is set by hardware and cleared by software. It cannot be set by software.
Bit 7: ICFA
0
1
Bit 6—Input Capture Flag B (ICFB): Bit 6 is a status flag that indicates that the FRC value has
been transferred to ICRB by an input capture signal. If BUFEB is set to 1 in TCRX, ICFB
indicates that the FRC value has been transferred to ICRB by an input capture signal and that the
ICRB value before this update has been transferred to ICRC.
This flag is set by hardware and cleared by software. It cannot be set by software.
Bit 6: ICFB
0
1
Bit 5—Input Capture Flag C (ICFC): Bit 5 is a status flag that indicates that the FRC value has
been transferred to ICRC by an input capture signal. If BUFEA is set to 1 in TCRX, ICFC is set
by the input capture signal even though the FRC value is not transferred to ICRC. In buffered
operation, ICFC can accordingly be used as an external interrupt, by setting the ICICE bit to 1.
This flag is set by hardware and cleared by software. It cannot be set by software.
Bit 5: ICFC
0
1
Description
Clearing conditions:
After reading ICFA = 1, cleared by writing 0 to ICFA
Setting conditions:
Set when the FRC value is transferred to ICRA by an input capture signal
Description
Clearing conditions:
After reading ICFB = 1, cleared by writing 0 to ICFB
Setting conditions:
Set when the FRC value is transferred to ICRB by an input capture signal
Description
Clearing conditions:
After reading ICFC = 1, cleared by writing 0 to ICFC
Setting conditions:
Set by input capture signal
(initial value)
(initial value)
(initial value)
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