Fujitsu MB90335 Series Hardware Manual page 384

MB90335 Series
Figure 16.3-2 Timing to Cancel the External Interrupt Request at the DTP Operation Termination
Interrupt factor
Internal operation
Address bus pin
Data bus pin
Read signal
Write signal
Data, Address, Bus
IRQ
When transfer is terminated,
withdraw within 3-machine cycle
CM44-10137-6E
Edge request or "H" level request
Note : μDMAC
Descriptor
select/read
Read address
Figure 16.3-3 Example of an External Peripheral Interface
DTP
MB90335
FUJITSU MICROELECTRONICS LIMITED
CHAPTER 16 DTP/EXTERNAL INTERRUPT
16.3 Operation of DTP/External Interrupt
I/O register At memory transfer
Write address
Read data Write data
Withdraw within 3-machine cycle.
Internal bus
INT
CORE MEMORY
363