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11.5.7
Timing of IMFA to IMFD Setting at Input Capture
If a general register (GRA, GRB, GRC, or GRD) is used as an input capture register, the
corresponding IMFA, IMFB, IMFC, or IMFD flag is set to 1 when an input capture occurs. Figure
11-22 shows the timing of the IMFA to IMFD flag setting at input capture.
GRA to GRD
TCNT
Input capture
signal
φ
N
N
IMFA to IMFD
IRRTW
Figure 11-22 Timing of IMFA to IMFD Flag Setting at Input Capture
Timing of Status Flag Clearing: When the CPU reads a status flag while it is set to 1, then writes
0 in the status flag, the status flag is cleared. Figure 11-23 shows the status flag clearing timing.
IMFA to IMFD
Write signal
Address
φ
TSRW address
IRRTW
TSRW write cycle
T1
T2
Figure 11-23 Timing of Status Flag Clearing by the CPU
Содержание H8/3670F-ZTAT HD64F3670
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