Fujitsu F2MCTM-16LX Hardware Manual page 346

CHAPTER 17 DTP/EXTERNAL INTERRUPTS
DTP/external interrupt circuit
Factor
DTP/external interrupt
request generating
Interrupt controller
reception judge
CPU interrupt
reception judge
Interrupt processing
microprogram starting
External interrupt starting
Processing and interrupt
Recovery from external interrupt
330
Figure 17.4-2 Operation of DTP/External Interrupt
Other
request Interrupt controller
ELVR1
ICR
EIRR1
ICR
ENIR1
1
ICR:ISE
0
flag clear
Recovery from DTP processing
IL
YY
CMP
ILM
XX
2
EI OS starting
Peripheral data
Memory
transfer
Renewal of descriptor
=0
Descriptor data
counter
0
CPU
Interrupt
CMP
processing
Interrupt processing
Reset or stop
Recovery from
2
EI OS processing
(DTP processing)