NT68F62 Datasheet, PDF (48/57 Pages) List of Unclassifed Manufacturers – 8-Bit Microcontroller for Monitor (32K Flash MTP Type)

NT68F62
Interrupt
IRQ0/1 Group
Service Routine
Need
No
Polling
INTRX?
Yes
No
INTRX ?
Yes
last byte
No
data ?
Yes
Read One Byte
Data From
CH0RXDATReg.
Receiver Over
close INT interrupt
Last two
No
byte data?
Yes
No
send repeat
start?
Yes
Send repeat start
set last byte flag
Send repeat start
set last byte flag
Read One Byte
Data From
CH0RXDATReg.
Read One Byte
Data From
CH0RXDATReg.
Open INTRX & INTNAK INT
Need
No
Polling
INTTX?
Yes
No
INTTX?
Yes
Last byte
No
Trans.?
Yes
Need
No
Polling
INTNAK?
yes
INTNAK?
yes
No
Other interruptProcess
or Have someerror
Calling
No
Address?
Yes
Transmission failed
send repeat ^No
start?
No Slave Device Exist
System will send outSTOP &
set MODE bit to 1 automatically
Yes
Write 1 to MODE bit
(system send out a STOP)
Send repeat start
Put next byte data
into
CH0TXDATReg.
Write 1 to MODE bit
(system send out a STOP)
Trans. over
close INT interrupt
Open INTRX & INTNAK INT
Return
Figure 15.11. Master Mode INT Operation
48