Rev. 3.0, 10/02, page 318 of 686
Underflow
signal
TCNT
(underflow)
TCNT
input clock
H'0000
H'FFFF
TCFU flag
TCIU interrupt
φ
Figure 10.41 TCIU Interrupt Setting Timing
Status Flag Clearing Timing: After a status flag is read as 1 by the CPU, it is cleared by writing
0 to it. When the DTC or DMAC is activated, the flag is cleared automatically. Figure 10.42 shows
the timing for status flag clearing by the CPU, and figure 10.43 shows the timing for status flag
clearing by the DTC or DMAC.
T1
T2
TSR write cycle
TSR address
Address
Write signal
Status flag
Interrupt
request
signal
Figure 10.42 Timing for Status Flag Clearing by CPU
Содержание H8S/2215 Series
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Страница 481: ...Rev 3 0 10 02 page 423 of 686 I O pin Control OUT IN TDI pin TDO pin Figure 14 2 Boundary Scan Register Configuration ...
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Страница 721: ...Rev 3 0 10 02 page 663 of 686 ø A23 to A0 to tBRQS tBACD tBZD tBACD tBZD tBRQS Figure 24 11 External Bus Release Timing ...
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