E62655RUSB Renesas Electronics America, E62655RUSB Datasheet - Page 538

• Manufacturer Part Number: E62655RUSB
• Description: EMULATOR BASE H8S/2655R W/USB
• Manufacturer: Renesas Electronics America
• Type: Microcontrollerr

Specifications of E62655RUSB

• Contents: E6000 Emulator Unit and 4 Logic Probes
• For Use With/related Products: H8S/2655R
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Section 10 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 10.46 shows the timing for status flag
clearing by the CPU, and figure 10.47 shows the timing for status flag clearing by the DTC or
DMAC.
Rev. 5.00 Sep 14, 2006 page 508 of 1060
REJ09B0331-0500
Address
Status flag
Interrupt
request
signal
Address
Write signal
Status flag
Interrupt
request
signal
Figure 10.47 Timing for Status Flag Clearing by DTC/DMAC Activation
Figure 10.46 Timing for Status Flag Clearing by CPU
TSR write cycle
Source address
T1
TSR address
DTC/DMAC
T1
read cycle
T2
T2
DTC/DMAC
T1
write cycle
Destination
address
T2