YR0K42378FC000BA Renesas Electronics America, YR0K42378FC000BA Datasheet - Page 686

• Manufacturer Part Number: YR0K42378FC000BA
• Description: KIT EVAL FOR H8S/2378
• Manufacturer: Renesas Electronics America
• Series: H8®r
• Type: MCUr

Specifications of YR0K42378FC000BA

• Contents: Board
• For Use With/related Products: H8S/2378
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Section 11 16-Bit Timer Pulse Unit (TPU)
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 11.42
shows the timing for status flag clearing by the CPU, and figure 11.43 shows the timing for status
flag clearing by the DTC or DMAC.
Rev.7.00 Mar. 18, 2009 page 618 of 1136
REJ09B0109-0700
Address
Status flag
Interrupt
request
signal
Address
Write signal
Status flag
Interrupt
request
signal
φ
φ
Figure 11.43 Timing for Status Flag Clearing by DTC/DMAC Activation
Figure 11.42 Timing for Status Flag Clearing by CPU
TSR write cycle
Source address
T
TSR address
T
DTC/DMAC
read cycle
1
1
T
T
2
2
T
DTC/DMAC
write cycle
Destination
1
address
T
2